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Hi Stephen,

I presume this relates to the question that you asked on Sunday about Passat petrol vs. diesel figures. Yes, the 1.6-litre FSI Passat from memory does feel a little on the slow side because it is quite lacking in torque. Here are the figures once more, versus the 1.9-litre TDI from the same year:

In 2007, the 1.6-litre Passat had 115hp and 155Nm of torque. Top speed was 199km/h, with 0-100km/h in 11 seconds and fuel consumption was 7.6l/100km (or 37mpg).

The 1.9 TDI had 105hp and 250Nm of torque. Top speed was slower at 188km/h and 0-100km/h took 11.7 seconds, but fuel economy was much better at 5.6 l/100km (50mpg).

The extra torque in the diesel Passat will probably make it a nicer car to drive. 

If you do need more power, the 2007 Passat is also available with a 2.0-litre TDI engine with 140- and 170hp options and there are several on sale at the moment, if budget allows.

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Hi Alec,

First, the disclaimer: a huge number of factors will influence your average fuel consumption, including the route you take; whether your tyres are inflated correctly; if you're driving around with a boot full of golf clubs; and of course how you drive.

All that aside, a good rough estimation is to split the official combined and urban economy figures. This varies for every car but I think you should use about 6.0 litres/100km - which is 47mpg in old money.

Let me know if you want a few basic tips on how to improve your economy and how to measure your consumption precisely.

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Hi Ruth,

Not a word of a lie: I picked one up this morning from Honda to test for the week. Paddy has driven it for longer so he'll give you his opinion too, but my first impressions are better than expected. Until recently, hybrids were designed first and foremost for the American market and they were quite different to drive to conventional cars. Most of that is still true, but both the Toyota Prius and Honda Insight are more normal than what has gone before and even more efficient.

The official fuel economy and emissions figures of the Insight are pretty impressive though, at 4.4 - 4.6 litres/100km and 101 - 105g/km of CO₂ depending on which version you choose. The Toyota Prius boasts even better numbers, though it's a few grand more expensive.

So far I've averaged about 5.4 litres / 100km in mixed driving and I'd expect that to be pretty representative unless you're on a long motorway run, where the average might improve further.

I prefer the interior of the Insight to the Prius', even if Honda has used too much hard plastic for my liking. The Honda is more conventional, despite the presence of strange plant graphics in the dashboard to tell you how economically you are driving. You sit low down and there's loads of space for five adults and a fair amount of luggage.

The steering wheel on our test car is really shiny and a bit slippery, but I'm sure that'll change with use. Its controls for the stereo are nice and tactile though. Shame I can't say the same for the spindly gear lever, but there you go.

Overall it's easy to drive and while it's no performance car it keeps up with traffic easily enough. That aside, the Insight's engine is commendably quiet, unless you really put your foot down. However, I noticed that road noise is quite prominent in return.

I'd personally prefer a regular car to either the Prius or Insight hybrids. If fuel economy were the most important factor I'd opt for a good turbodiesel model. There is a lot of choice on the market for the €22,000 - €23,000 asking price of the Honda.

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Hi Joe,

I recently drove the Golf BlueMotion and the review will go up shortly, but what I can say is that I was really very impressed by the car for a number of reasons. Obviously this is the full BlueMotion version and that differs slightly to the 'BlueMotion Technology' model that we have seen before. 

This new car gets a full raft of eco measures. There is Stop/Start, regenerative braking, a modified radiator grille, low rolling resistance tyres and a specially tuned diesel engine. The result is emissions of 99g/km and fuel economy of 3.4 l/100km. Now, you would want to be really hyper-miling to get those figures but we got close to that on our few days with the car. The economy was really staggering. 

There is 105hp from the 1.6-litre diesel and it isn't a rocket: 0-100km/h takes 11.3 seconds. It is however, a very nice car to drive. It doesn't feel slow because it is geared well. And it is a nice place to be. For the price, it is quite well equipped. 

Obviously, price is an issue. There is no real incentive to buy this car for its emissions like there is in other markets. In some markets, such as the UK, if your car has less than 100g/km you don't pay road tax, but here everything under 120g/km is Band A and the Ford Focus 1.6 D Style will cost you about the same to run, yet is €1,545 cheaper to buy. 

To answer your original question though, if I was buying a Golf, yes this is the one I would have (aside from the GTI of course). I really liked it. 

You also have to look at the Skoda Octavia too. For €23,820 you could have an Octavia with the same engine, but with the DSG automatic transmission. Hope this helps, feel free to come back to us if you have any more questions.

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Hi Scott,

There is no easy answer to that one! Power and torque are directly linked. Power is the rate at which work is done, where the work is the torque figure.

Think of torque as 'twist' (the tendency of a given force to rotate an object about its axis in school book terms) and it begins to make a little more sense. The force in this case is that exerted on the car's pistons. This is created by the explosion of air and fuel, which increases the pressure in the cylinder. The pistons then move down and turn the crankshaft, which transfers drive to whatever transmission is fitted and eventually the wheels.

So basically it's the torque that causes acceleration.

Many people simplify all this to say that the maximum power figure has a bearing on the car's top speed, while the torque figure is a better representation of its acceleration.

Just to confuse things, there are loads of different units for power and torque in use. These include:

Power: bhp, hp, PS, kW

Torque: Nm, lb.ft

Hope that helps!

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Hi Tony.

Thanks for writing in. With €30,000 to spend you have quite a fair degree of choice. As you are retired, I would imagine that you might want something for a variety of purposes. You mention that you will travel a bit with some of the work you are going to be doing now. When you refer to farming work, then I guess you might end up in a muddy field now and again too, so perhaps some off-road ability would be a help too?

I don't want to ask a retired gentleman his age, but I know that when you get older access becomes important and something a little higher will be easier on 'well-used' joints and kind on your back too. I would recommend the Skoda Yeti because I think that this could tick a lot of the boxes. It has great build, is comfortable, easy to get in and out of and if you get one with four-wheel drive then it will cope with all your farm work too.

A figure of €25,220 will get you a 2wd Yeti 2.0-litre TDI (110hp) with all the bells and whistles. The 4x4 model isn't on sale yet, but we will check with Skoda and find out when that version arrives. If you don't think you would need the 4x4 version for towing or getting over bad terrain then you should probably get the 2wd version as it keeps fuel economy and emissions low.

It will cost you just €156 to tax each year because emissions are just 138g/km and the 110hp 2.0-litre diesel is eager enough too. We reckon this car could really suit you.

Another option would be the Subaru Forester Diesel. The newer model is a little over your budget, but you could get a 2009 model for about €30,000.

Anyway, hopefully this steers you in the right direction. We will come back to you on the Skoda Yeti 4x4 once we have spoken to Skoda.

Expert answer

Hi Stephen

In 2007, the 1.6-litre Passat had 115hp and 155Nm of torque. Top speed was 199km/h, with 0-100km/h in 11 seconds and fuel consumption was 7.6l/100km (or 37mpg).

The 1.9 TDI had 105hp and 250Nm of torque. Top speed was slower at 188km/h and 0-100km/h took 11.7 seconds, but fuel economy was much better at 5.6 l/100km (50mpg).

So, the petrol was a fraction faster, but the diesel offers much better fuel economy. Hope this answers your question.

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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

Hi Patricia,

The correct tyre pressures for the Citroen Xsara from 1997-2000 are 31 psi front and rear, but you might want to adjust this upwards slightly if you carry a fully laden car.

Remember to check your tyre pressures every 2 weeks to ensure you have the correct pressure as under-inflation can cause uneven tyre wear and decrease fuel economy. You can buy small devices to check your tyre pressure at places like Halfords or other car parts outlets.

As regards the Xsara owner's handbook, you could go down the route of getting them from a dealer, but we reckon eBay is your best (and cheapest) bet. We found one for around a tenner here

Hope this helps!

Expert answer

There has been a lot of debate about the benefits of hybrid cars, but few would disagree that they are a step in the right direction. The principle of the current crop of hybrids, for those that don't know, is that a standard petrol engine is combined with an electric motor, with the result being better fuel consumption and lower emissions. The original Toyota Prius was the first mass-produced hybrid on sale and Toyota has just released the third generation of the model and it promises to be more refined and cleaner than ever.

There are other alternatives such as the Honda Civic Hybrid, which isn't bad either, or the Honda Insight, while at the top end of the scale Lexus does three hybrids, the GS 450h, the LS 600h and the RX 450h. In the case of the Lexus hybrid technology it's as much about giving the cars higher performance as it is increasing efficiency.

A hybrid is cleaner in so far as official emissions figures are very low. The Prius emits less then 90g/km, which will make it the cleanest petrol car on sale in Ireland. In some cases you could get better fuel economy from a diesel engine though.

With a budget of €40,000 you could easily get into the new Prius when it arrives in October, as the car is expected to cost about €28,000 and this will be a very cheap car to run, so it seems the natural choice. Bear in mind that even cleaner technologies will arrive soon, including those in the Opel Ampera and even a new plug-in version of the Prius.