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Hi Barbara,

If the C-Max is in good condition and has a full service history, go for that one. It'll be more reliable than the Renault.

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Hi Rory,

Full service history? Then you could be looking at around the €7,500 mark. Not a full history? Then probably more like €6,000.

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Hi Karla,

Well, you're looking at two different sizes of car there. If you want to physically downsize, then the Ibiza is the one to go for - it's smaller than the Golf (based on the same chassis as the Volkswagen Polo), but still pretty spacious, rather handsome and nice to drive. They're very reliable too, but quite noisy and uncouth on a longer journey. A Focus is roughly the same size as a Golf, but if it's painless, economical motoring you're after than a 1.6 TDCi Focus could be the answer - plentiful, well-made, sweet to drive and 55mpg.

What do you think?

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Hi Lynda,

Yup, by and large Suzukis are very reliable and if you're going to get a Vitara, then the petrol model is the one to go for - Suzuki's record with diesels is patchy at best until quite recently. There are no major reported recurring problems but just make sure that the previous owner has had it serviced properly - the service intervals are quite short and many owners have been tempted to skip scheduled services. Walk away from anything that doesn't have a full and complete history.

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Hi Tom,

How about a Fiat Multipla? OK, not everyone's idea of a good looking car, but it's got an amazing interior, bags of space, is terrific to drive and I found one for €4,500. Yes, I know... OK, on with the sensible stuff though.

There are plenty of Opel Zafiras around for that kind of money, but you will have to search hard to find a diesel one. They are out there though. Plenty of Peugeot 307 SW estates (which came with a seven-seat option) too, but tread carefully and make sure there are no electrical gremlins to deal with. Ditto Renault Scenics. Actually, the more ruggedly reliable Kangoo (or a Citroen Berlingo for that matter) might be a better option.

The most sensible suggestion would be a Toyota Corolla Verso, but they're very, very hard to find with a diesel engine at that price level. Might be worth biting the bullet and going for petrol to get the best.

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Hi Gerry,

You've picked three difficult cars to choose between. Obviously, both the Hyundai and Kia are essentially the same car beneath the skin, and both come with temptingly low prices and long, long warranties. The SEAT's three-year warranty looks a bit brief in comparison, but then you are buying into a car with excellent reliability and high quality, so there's that.

You've also got an odd combination of relatively high mileage, but in an urban location, which suggests that you won't be working up enough speed to generate exhaust heat to keep a diesel particulate filter (DPF) clean. With all that in mind, I think your best best might be a Leon 1.2 TSI petrol. It's a cracking engine, nearly as good as a diesel on fuel economy, but with no nasty surprises waiting in the exhaust. Both the Hyundai and Kia are excellent cars, but both are best experienced as diesels.

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Hi Austin,

We're going to assume it's on the new CO₂-based taxation. The 2.0 diesel S-Max emitted 169g/km, which means it's in Band D for tax, costing €570 per annum.

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Hi John,

OK, there's a balancing act to be done here. There's no doubt that the CO₂-driven diesel stampede since 2008 has driven up the values of second hand diesel cars and driven down the values of their petrol equivalents. However, that is starting to change, and cannier buyers (helped in some part by investigations and comparisons by the CompleteCar.ie team - blowing our own trumpet etc. etc.) have shown that the overall cost of buying and running a petrol engined car can actually be lower than that of a diesel, especially for those drivers on relatively low mileage like yourself.

In that sense, I'd be well in favour of getting the petrol one, but there is a caveat to that - the A4 is very much a business market car, and therefore most of its prospective buyers, new and used, will be expecting to see a TDI badge on the boot. If you're buying on a lease or a PCP with a guaranteed future value, then that's not such an issue, but the answer is yes, you could well lose out a little on depreciation over a few years. Probably not a lot, but it's a moving target at the best of times.

Can I suggest this? Instead of an A4, have a look at the A3 Saloon. It's admittedly smaller, but it is also prettier, better to drive and good enough to win Family Car of the Year from the Association of Professional Motoring Press (APMP). It can also be had with the excellent little 150hp 1.4-litre turbo petrol engine and should be somewhat less sensitive to the diesel/petrol tug of war when it comes to second hand values.

Let us know which way you go anyway.

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Hi Eoin,

Yes, it's a fine purchase as long as you go in with your wits about you and make sure that it's got a full service history. Any expensive German car without one is effectively worthless... That generation 3 Series was pretty robustly built and was less technically complex than later versions, so there's less to go wrong.

If it's the 2.5 straight-six petrol you're looking at, then it's a reliable unit, and well-proven, but watch carefully for any signs of water leaks or head gasket trouble. If it's had cooling or head trouble in the past, it's very likely to happen again and you could be looking at an engine swap. If it's the 2.5 diesel you're looking at, check for any white smoke from the exhaust or lumpy power delivery, which could indicate turbo problems.

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Hi Maria,

I presume you're talking about a first generation Mazda3, seeing as most of the second-gen models came with diesel power. The official economy for a 2005 model year Mazda3 1.6 petrol is 39mpg with CO₂ emissions of 172g/km.