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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.

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Hi Ollie,

Cars like your Golf are retailing for around €8,000, so you might get close to this as a trade in against another car. Presuming that it might be a little less, say €7,000, we could say that you have a €13,000 budget overall. I will come back to you shortly once I have done some more research for you. 

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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 Tony,

Based on your description of the shuddering problem our first thoughts would be wheel balancing, even if you think it doesn't feel like that. Obviously it's difficult to analyse such a problem over email. To be safe you really should get that looked at as soon as possible. Given that your car has such low mileage I assume it is still under warranty. In that case, book it in at your dealer right away and tell them about the stereo issue too.

We've asked Mazda to comment too. See below.

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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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Hi Liam

A car like yours will retail at a main VW dealer for around €13,500 - €14,000. So, you could probably expect to be offered about €11,000-€12,000 when you trade it in against a Mercedes-Benz, perhaps more if you were trading it in at a VW showroom. Dealerships often have to invest in bodywork and servicing of a trade-in so they don't tend to offer the same as it will retail for and of course they have to try and make some profit too.

Don't get too caught up on how much you are being offered for your car, but rather look at the cost to change. Remember, if you were buying the Mercedes as a straight deal you would probably get a decent discount. This discount may be used against your trade-in to make it seem more appealing.

Pricing a car isn't an exact science, but we would say shop around and don't be afraid to haggle hard!

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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.

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It is very true that obtaining finance is a major problem at the moment. A survey by the Peugeot dealer network in late 2009 showed that 71 percent of car finance proposals were being rejected compared to 30 percent in September 2008. In the last 12 months GE Money, Friends First and Lombard Ireland all left the market, which is now dominated by the likes of Permanent TSB, Bank of Scotland Ireland and the two main banks, AIB and Bank of Ireland. Evidence also suggests that the credit union has become a prominent lender for private individuals in the car market. It isn't a free for-all from the credit unions, but if you do have a decent savings record with a credit union they are a very good option.

In most dealerships, if you go through the likes of Permanent TSB, then you will usually need a pretty hefty deposit. Volkswagen Group now have their own bank and are said to be getting very high pass rates. As with most cases, it does depend on the state of your own finances and your ability to pay back the loan.

What seems to be clear is that motor finance is available, but like so many of the radio advertisements will say, ‘terms and conditions apply’. Large deposits and tough credit checks have replaced the sort of one-click, one-signature availability of the recent past

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Firstly, trading in your car won't be a problem at all if you are bringing the car in against a new model, but you might not get as much for your car as you would have first expected. Selling it privately can be a little trickier these days too as buyers are harder to find because of the lack of available finance, quite simply.

Now, in terms of the car, the SEAT that you are talking about is probably the Exeo, which hasn't been on the market too long. It is a nice car, basically a rebadged previous-generation Audi A4. You have a choice of 1.6- and 2.0-litre petrol or a 2.0-litre diesel. Prices start at €26,690. Go to www.seat.ie for the latest line-up and pricing.

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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.