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Hi Fintan,

OK, well you’re kind of cutting across class boundaries there — a Focus and a Mondeo are really quite different cars, with the Focus being smaller, cheaper and arguably more fun to drive, and the Mondeo being more expensive, but bigger, comfier and more refined. That goes pretty much the same for the Opel Astra and Insignia, or the Volkswagen Golf or Passat. So the first thing you need to work out is what you want, and what you need, and whether or not you need the bigger car, or if something more compact will do.

Of the brands you’ve mentioned, the VWs will probably do the best in reliability terms, with Ford being the most enjoyable to drive, and Opel falling somewhere in the middle, but you should also be considering the likes of the Toyota Auris and Avensis (best for reliability), the Peugeot 308 and 508 (stylish, good to drive) and the Mazda3 and Mazda6 (reliable and both very good to drive). 

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Hi Ollie,

Generally speaking, you should be OK, as that 30-min run each day should be enough to keep a DPF hot enough to clean it out, but that’s if and only if that 30 mins is all run at high-ish speeds, say above 80km/h most of the time and in a lower gear. If you’re spending a lot of time in stop-start traffic, I think a petrol option might still be the better one. Mazda’s 2.0-litre petrol engine can be a bit thirsty, but the 1.4 TSI option in the Passat and A4 is a very frugal engine, and still has peppy performance.

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Hi James,

As discussed via email:

That generation Audi A6 is in general a reliable car, but not fault-free. Some owners have had no problems, while others have been plagued. The Multitronic transmission is not renowned for being the most trouble-free, though units made pre-2006 have the most problems. Also, the gearbox's fluid should be changed at 55,000 and 115,000 kilometres (or 35,000 and 75,000 miles) so the car you're looking at should have had two changes by now. Check that it has and then look in detail at how the gearbox works. Does the 'PRNDS' indicator on the dash flash? Is there hesitation? Is it easy to get reverse?

No matter what turbodiesel car you look at you'll hear of turbo problems from some owners. Most of the time it's likely to be due to poor oil maintenance. So check the car's service history in terms of oil changes and that the oil level itself is right. They do use a bit of oil.

While you're checking out the car in detail, make sure the air conditioning can produce freezing air in just a few minutes, as these have been known to fail.

I'm probably making this sound worse than it is! I'd buy an A6 for myself - it's a good car - you just need to know what you're looking for and not get caught out by one of the few badly maintained examples out there.

Let us know how you get on.

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Hi Daniel,

As that car is pre-2008 it is taxed according to its engine size. Following the Budget announcement (December 5, 2012), the cost of taxing that car for a year has risen from €962 to €1,034.

Hope that helps,

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Hi Andrew,

You're in an enviable position. I'm going to go on the assumption that four-wheel drive is a must-have (though a rear-wheel drive car on winter tyres is as good as a 4x4 without in terms of stopping and changing direction as well as traction...) and given your comment on fuel we'll say it has to be diesel too. Don't worry, there's still fun to be had.

The 3.0 TDI V6 engine found in certain Audi A6s and A8s is a gem and partnered with quattro four-wheel drive seems made for you. The equivalent rear-wheel drive BMWs are a little more engaging, and the 330d/530d's engine is also fantastic, though we suspect you want four-wheel drive. Try a 535d out for size and you might change your mind and invest in winter tyres instead!

As much as we admire the X5 and Touareg, and they're good value on the used market at the minute, we can't help but feel they'll be just as difficult to sell on in a few years.

Another excellent alternative to the (quite common) Audi A6 is the allroad quattro version, based on the A6 Avant. Seems to tick all the boxes.

Let us know if we're on the right track here.

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Hi Patrick,

Clutch wear will depend on the driver and also where the car is being used mostly. Without knowing much about either of those we can't make a full judgement, but our initial reaction is that it seems too soon for a car such as that to need a new clutch.

We'll be in touch with you via email, and Audi Ireland, to come to a more concrete conclusion.

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Hi there,

The original Audi guarantee will be long gone, unless the previous owner had paid to have it extended, and it would have to have been serviced at an Audi main dealer to still be under cover. The fact that you’re buying it from a Nissan dealer suggests that’s not the case. Nissan does offer a ‘Gold Standard’ used car programme, which comes with a one-year or 15,000km warranty on used sales, and which will have carried out a multi-point check on the car. You’d always be advised to get your own history and finance check done, but if it’s a main Nissan dealer, they’ll likely have already done that.

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Hi Eamonn,

The launch date has yet to be announced, though it will be 2013. Mazda has confirmed that the new 6 will be unveiled in production-ready format at the Paris Motor Show this September.

Let's hope it looks half as good as the Takeri concept car!

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Hi Sean,

With those options in front of us and no clue to each car's mileage and condition then we'd say there's a strong case for the Mazda6. It's significantly more spacious than all the other cars you listed for a start. That 2.0-litre diesel engine has plenty of grunt and is relatively economical, while the Mazda6 has a great reputation for reliability.

Hope that's of help

Expert answer

Hi Niall,

You're in an unfortunate position and there are thousands more like you. It may be better if you tried to sell the car privately, though its value may be much lower than you had hoped.

Sorry we can't be the bearers of good news on this one.