Expert answer

Hi Carl,

The thing about fuel economy figures from the manufacturer is that they are often very difficult to match. We seldom match them, as they are recorded using specific lab conditions and are often not really reflective of real-world conditions.

There are some things you can do to improve your fuel economy however:

1 Pump up to cut down 

Under-inflated tyres create more resistance. That means your engine has to work harder, so more fuel is used. Check and adjust your tyre pressures regularly, and also before long journeys.

2 Less clutter means less CO₂ 

Clutter in your boot is extra weight in your car. By removing it, you could reduce your engine's workload. This will burn less fuel.

3 Drive at an appropriate speed 

Staying at or within the speed limit not only increases driver safety, it also reduces fuel consumption. At 110km/h you could be using nine percent more fuel than at 100km/h, and up to 15 percent more fuel than at 80km/h.

4 Less stopping and starting 

Every time you stop then start again in a traffic queue the engine uses more fuel. Keep an eye on the traffic ahead and slow down early by gently lifting your foot off the accelerator while keeping the car in gear. The traffic may have started moving again by the time you reach the vehicle in front, so you can change up a gear and be on your way.

5 Over-revving accelerates emissions 

Modern car engines are designed to be efficient from the moment they are switched on, so revving up like a Formula 1 car in pole position only wastes fuel and increases engine wear. Using your gears wisely by changing up a gear a little earlier can also reduce revs.

6 Idling is wasting fuel 

When the engine is idling, you're wasting fuel. If you're likely to be at a standstill for more than three minutes, simply switch off the engine.

 – Source: Defra UK

Expert answer

Hi Michael,

Sorry to tell you that the 156, as much as we love them, have not proven to be very reliable. The Driver Power Survey (carried out in the UK, but usually relevant to the same cars sold here) continuously ranks the Alfa 156 near the bottom for reliability. On closer scrutiny the much talked about electrical problems seem to be niggles rather than serious issues, though blown head gaskets and water leaks have been reported too.

As with any second-hand car, go for the example with the best service history, and make sure with the 156 that it had its 60,000-mile service done at the right time.

Same advice with the 146 really with regards to service history. It's especially important that it has had regular, on time timing belt changes so if there's no history showing this then look elsewhere. Smoky engines are a giveaway to expensive future bills, as are groans and creaks in the suspension. As with the 156, electrical niggles have been widely reported, though it seems that some cars have them and some don't...

In summary, if reliability is the most important aspect of this car purchase to you, then we'd not recommend either of these cars, but if you're already sold on the idea of one of these Alfas then we'd suggest you veer towards the 156.

Hope that helps.

Expert answer

Volkswagen aren't saying much at the moment, but you can take it as a given that the new model will feature the 1.4-litre TSi and I reckon (and this just a guess) that it will be the same one that is in the Passat at the moment. This is a reasonably new engine and I think it will be carried over to the replacement. The 122hp unit replaced the 1.6-litre petrol and for the first while I would see this engine being carried over.

As you can see from what they have done in the Polo, with the 105hp unit available, there is increasing popularlity and relevance for these smaller turbocharged engines and they definitely have a future. They offer a great way of keeping emissions down but at the same time returning pretty potent performance.

Everyone is being conditioned to buy diesel cars at the moment, but this new raft of small petrol turbocharged engines will offer a great alternative.

Expert answer

Hello Brian,

This is an interesting one. I am guessing, as you own and love the 406 Coupé that you don't really want something too mainstream. It might seem obvious to put you into something like a BMW 3 Series Coupé, but I don't think that is what you are after.

As you probably know, you might not get offered very much for your 406 Coupé, which is a shame. Try to sell it privately because these cars do have a loyal following and if you got €2,000 that would no doubt be welcome. There is one for sale with a lot less miles than yours in Dublin for €2,650, so work backwards from there. 

Trading it is probably the easiest. Let's say that you have a budget of €16,000 and see what is around that might suit. 

One, perhaps rather obvious, choice would be to go for a Peugeot 407 Coupé. The diesel model sold really well and remains expensive, but I found a 2007 2.2-litre petrol version with just 21,000 miles on the clock and they are asking just €14,950. You can find it here:

http://tinyurl.com/33k7nl3

That might work given the really small mileage that you do and since you loved your 406 Coupé then this could be a great buy. 

If you want something very pretty and unique, how about an Alfa Romeo Brera? Here is a 2.2-litre petrol model for €17,950, but you could well haggle this price down further. There aren't too many about and while we cannot say that it won't give you the odd headache, it is a real head turner.

http://tinyurl.com/3ydqk89

Even if you're not a BMW guy, it's worth considering a 2006 320d Coupé, which will be reasonably economical for under €16,000. This one is in Monaghan and the mileage is pretty good at 69,000 miles.

http://tinyurl.com/3yr7wgq

I don't think you need a diesel given your mileage. I'd pick a Volkswagen Golf GTI. I know it isn't a coupé, but it is a super car to drive. This one is a 2006 model, but you might sneak into a 2007 version for your budget too. The example we found has the brilliant DSG gearbox, has done just 26,000 miles and is loaded with kit. It is such a rewarding car to drive and, since you live in the city, the gearbox should suit you perfectly giving you the best of both worlds.

http://tinyurl.com/32aftto

Please feel free to come back to us if we are way off the mark!

Expert answer

There has been a huge move towards diesel cars here in Ireland because of the change to the road tax and VRT laws in July 2008.

Since then, as you may or may not know, road tax and VRT are calculated according to a car's CO₂ emissions and because diesel cars use less fuel than petrol ones, their emissions tend to be lower.

When your father bought the Mazda6 in 2008 it may well have been better value than the diesel model. Now, there is much less difference between the price.

Before we move away from Mazda, there is now a very good range of diesel engines in the new Mazda6 and that might make the most cost-effective swap if he was happy with the car he has because you will most likely get the best trade-in price from a Mazda dealer. However, by the sounds of things he wants a change.

Covering only 10,000km a year we previously might have said that there was no real need to buy a diesel because you would not save the extra price of the car in fuel.

This point remains true, but the difference now is that the market has changed so much to diesel that petrol cars are likely to lose their value faster and become increasingly unwanted by used car buyers, so at this size of car, we would say yes, move to diesel. Also, if you do buy new, your father will most likely benefit from lower road tax.

Without knowing a budget it is difficult to point you in the right direction but from the cars you mention I'm guessing the budget is between €25,000 - €35,000. This does offer a lot of choice.

The 2004/2005 BMW 320d is certainly an option. Since the current shape model came out in 2005, we would encourage you to look at these, or even a 2006. The prices of these are quite competitive at the moment. A 2005 320d SE at a SIMI dealer would probably cost you between €15,000 - €17,000.

BMWs are always tempting to buy used, but you must choose one that has been properly serviced and cared for, because they can become more expensive to put right as they get older. The choice of used 320d models at the moment is vast so if you do go down that route, shop around. It is a great car and with the small mileage your Dad does it is unlikely to end up costing you too much.

If you want to go down the new route, there are a few that would spring to mind. The first is the Skoda Superb. This car is really brilliant and huge too. It is well made and loaded with equipment. If your Dad likes comfort then this will be right up his street.

Our choice would be the 2.0-litre TDI Comfort for €27,805. It is excellent value for money and comes with lots of creature comforts (cruise control, climate control, etc.), a 170hp diesel that is powerful, yet still frugal at 5.8 l/100km. Road tax on this car is €302 per year. For me, if I were heading out to buy a family saloon today, I wouldn't pass the Superb.

You mentioned some other cars there. The Jetta isn't a bad car, but it's been out a few years now and is probably due an update, so I wouldn't buy that new. The Audi A4 is nice. A new one is going to cost you from €34,060 before you start looking at optional extras, so a 2009 model would make sense with all the options already added. €35,000 should get you a nice 2009 TDI version with lots of the toys thrown in.

Please feel free to come back to us with more details if you like (just add a comment below), but for me I would probably have the Superb.

Expert answer

Well you haven’t said what your budget is but there are plenty of interesting cars that are available under the scrappage scheme.

Alfa Romeo’s Mito is a small premium hatchback, and its clean 1.3-litre diesel engine puts it in Band A; the 1.4-litre petrol and 1.6-litre diesel models fall into Band B. Prices start at €18,995 before you take away the government discount.

The Audi A3 with the 1.2-litre TFSI petrol, the 1.6-litre diesel and 2.0-litre diesel all qualify for scrappage, as does the Cabriolet version. The A3 3-door starts from €25,195 before scrappage discount, it’s €26,195 as a 5-door Sportback model, and €32,785 for the Cabriolet version before the €1,500 discount.

The A4 with a 2.0-litre diesel engine in either 120bhp, 136bhp and 170bhp all fall under Band B in either saloon or Avant form. Prices start from €34,060 (€32,560 with scrappage) for the diesel saloon and €36,460 (€34,960 with scrappage) for the Avant. The stunning A5, with a 170bhp 2.0-litre diesel engine, falls into Band B. Prices start at €44,265 (€42,765 with scrappage). You can also have the Audi A6 2.0-litre TDi with 136bhp, which is in Band B. This huge car starts from €39,735 (€38,235 with scrappage). The Audi TT diesel is a really superb car to drive. At €44,175 for the Coupé (€42,675 with scrappage), this is a brilliant buy and that fact that it costs €156 per year to tax makes it all the sweeter.

BMW also has a huge number of models that qualify for the scrappage scheme. Its 2.0-litre diesel is used in various power outputs across the 1-Series, 3-Series and 5-Series and these all have emissions of less than 140g/km, even when fitted with an automatic transmission.

The 1-Series is available with clean diesel engines ranging in power from 115bhp to 177bhp. Prices start at €24,900 for the 3-door 116d, €23,400 with the scrappage discount.

The BMW 3-Series starts from €33,310 for the 316d. All its models get €1,500 off from the government through scrappage. Largest of all is the 520d. Although there is a new model coming later in the year, the run-out models of the 520d are expected to sell well, especially with a price tag of €40,220.

Mercedes-Benz has a number of models that qualify under the scrappage scheme. The standout model is the C-Class Blue Efficiency 200 (136bhp), 220 (170bhp) and 250 (240bhp) manual versions, the E-Class 200, 220 and 250 manual version and the E-Class Coupé 220 and 250 models with manual transmission. Prices start at €36,500 (€35,000 with scrappage) for the C200 CDi, €41,200 (€39,700) for the E200 CDi and €47,700 (€46,200) for the E-Class Coupé E250 CDi.

Finally, what about the Volkswagen Scirocco? You can have the 1.4-litre TSi petrol or 2.0-litre TDi Sport model under the scrappage scheme. Prices start at €25,190 for the Scirocco (€23,690 with scrappage),

To answer your question though, which is fastest? We think it is the BMW 123d Coupe. It has emissions of 138g/km yet has a top speed of 238km/h and 0-100km/h time of 6.9 seconds. This is faster than the Audi TT TDi, which has a top speed of 226km/h and 0-100km/h time of 7.5 seconds.

Expert answer

Firstly, there are probably more diesel automatic cars in Ireland than you might think, but they tend to be executive models rather than mainstream family cars because it seems that there still isn't a huge demand for them.

Toyota does in fact sell an automatic version of its Avensis. It is a 2.2-litre 150bhp diesel and that costs €35,530. Since you mentioned the Toyota Avensis we must assume that you are after a family saloon or hatchback so for a start you could have a Ford Mondeo 2.0-litre TDCi Style Auto for €32,225 - that comes as a saloon, hatchback or estate.

For you a few quid more you can have the run out version of the Jaguar X-Type 2.2 Diesel Auto for €32,995 or you could have the Mercedes-Benz B180 CDi Auto from €33,640.

There are loads of versions of the excellent Opel Insignia available with a choice of 130- or 160bhp diesel engines in saloon, hatchback or estate body styles. There are 24 different Insignia diesels available in total. Prices start at €30,380. You can have a Renault Laguna 2.0-litre dCi 150 TomTom Edition for €36,890.

A Volkswagen Passat 2.0 TDI with the excellent DSG gearbox will cost you from €35,960 and Skoda will sell you something with DSG for even less. How about an Octavia RS 2.0-litre diesel with 170bhp and DSG for €31,195? For us, that last car is the top choice. However you could stick with Skoda and go much bigger and that would be the Superb. You can have that with DSG and 170bhp for €31,195.

There is a fuel economy penalty in some cases and that is because the traditional automatic transmission has a torque converter. Automatic cars are generally a little heavier too, to the detriment of economy. Saying that, the latest generation of dual-clutch automatics and some of the newest conventional autos have massively improved.

Fuel economy and CO₂ emissions are directly linked, so often the manual version of a car can be in a lower tax band than their automatic siblings, but this is starting to change as mentioned above.

Expert answer

Hi Laura, that isn't really an easy question to answer, because it really is down to personal choice. Neither of these cars is significantly better overall than the other so it depends on what you are looking for in a car. The Focus is known for having the best chassis and if you like your car to have sharp, crisp and fun handling then you will choose the Focus. The Golf is also quite good to drive, especially the latest version, and it could be perhaps regarded as having a more upmarket image.

Both cars have clean 1.6-litre diesel engines in their best-selling models, with both of these sitting in Band A, which means low road tax. Both are similarly priced too, with the Focus at the moment having perhaps a better offer in the Style five-door model.

Really the only thing we could say is that you should try the two cars for yourself and decide based on your gut feeling. Both of these cars have similar traits and have strong residual values so it'll be a good buy whichever way you go.

Expert answer

The crew cab did enjoy a golden period in the early part of the last decade when there was a considerable tax break, with minimum VRT being charged on them. As a result, sales boomed for a period until this loophole was closed. Sales of the crew cab models aren't as strong as they used to be, especially since the building trade has been so badly affected by the economic downturn.

However, for someone like you they might still make an awful lot of sense because they offer the best of both worlds. They are useful as work vehicles with generous load bays and strong diesel engines that are capable both of high mileage and also towing duties. As everyday passenger vehicles they aren't as comfortable as a regular car and in some cases they aren't even as comfortable as a normal SUV, as most have a pretty basic chassis.

The main choices are between the Mitsubishi L200, the Toyota Hilux and the Nissan Navara. The L200 Double Cab €26,995 new - that includes a significant price reduction recently. It has a 2.5-litre diesel engine that puts out 136bhp. CO₂ emissions of 228g/km mean that it will cost you €2,050 per annum to tax, which is pretty high.

The Navara has a 2.5-litre diesel engine with 171bhp and that is quite a bit more power than the Mitsubishi and it too has emissions of Band G, at 264g/km. Prices start at €34,135 for the Navara Double Cab.

The Hilux comes with a choice of 2.5- or 3.0-litre diesel engines, with 120- and 170bhp respectively. The Hilux has emissions that are in Band E, so you at least save yourself €1,000 in road tax. Prices start at €29,575 for the 2.5-litre Double Cab model.

Having said all that, the best options are likely to be used where there are huge savings.

A 2007 Navara will cost you €16,500 from an approved SIMI dealer: http://bit.ly/d0uIC8 for example

Or a 2007 Toyota Hilux will cost you €19,000: http://bit.ly/bLloV5

Or a 2006 Mitsubishi L200 will cost you €14,950: http://bit.ly/97foEZ