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Hi Ruadhan,

That, I'm afraid, is a question with too many variable answers. Second-hand vehicle values are like stock market values - they go up and down and often rather unpredictably. There are a few rules of thumb, though...

1. It's got to be diesel. Yes, we (and others) have tried to educate the motoring populace that diesel power doesn't automatically mean better economy or lower running costs, but right now the market is diesel-crazy and if it doesn't sip from the black pump, it's not going to hold on to its value.

2. The lowest depreciating cars are, obviously, the most popular models. So the likes of the Ford Focus, Volkswagen Golf, Nissan Qashqai, Hyundai Santa Fe, BMW 3 Series, Audi A4 and so on will always hold on to their value the best. Check the list of the top-ten best-selling cars on the market - these are your depreciation heroes.

3. What about depreciation villains? Anything that the market doesn't trust, really. Estates tend to fare especially poorly, anything with a French badge is suspect and if it's Italian, forget it. You'll lose your shirt on any of these.

4. Spec is king. You can have the most in-demand car going but if it's painted bright yellow and has green seats, you're never going to shift it. So, to keep depreciation at bay, stick with dark metallics and subtle interior tones. Pale cabin colours tend to fare less well when it comes to wear and tear, so the market prefers blacks and greys on the inside too. If it's an executive car, it has to have an automatic gearbox. Anything with factory-fit air conditioning and Bluetooth telephony is looking good, leather is always helpful but other expensive toys don't always help a car hang on to its value.

Hope that's all of interest

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Hi Stephen,

Yes, as long as it's a reputable dealer. Make sure that they take care of all the re-registering, paying the Vehicle Registration Tax (VRT) and getting the car inspected by the National Car Test people. If they're trying to fob any of that off on you, walk away - it probably means that there's something dodgy in the history of the car. If you have any doubts, get a history check done by Cartell.ie - that should uncover anything untoward in the car's background.

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Hi Chris,

The Getz came from the last round of Hyundais that arrived before Hyundai got really good at making cars - in other words, it's cheap and cheerful where more modern Hyundais are slick and sophisticated. That said, as far as reliable, uncomplicated family transport goes, there's little enough wrong with the Getz. As far as we can tell, there are simply no major reliability problems to report, aside from a recurring problem with noisy rear brakes. All Getz models will have been originally covered by Hyundai's five-year warranty (introduced in 2002), so they will probably have been well cared for over their first couple of owners. Not an exciting car, then, but a solid secondhand buy.

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Hi Craig,

Thankfully, not as much as Land Rovers of old. It seems that, bar the occasional 'Friday afternoon car' the Disco 3 is a well-made, mostly reliable product. Check carefully though for any electrical gremlins (literally push every button and make sure that what it's supposed to control responds as it should) and check for any leaks or uneven sitting from the air suspension - could be a sign that the compressor is on its way out. Make sure that the automatic gearbox (few were sold as manuals) shifts crisply and cleanly too - the Disco 3 doesn't have the same reputation for chewing transmissions as its predecessor, but it can still be a weak point. And, as with any big off-roader, check carefully to see if it's been abused or worked hard as a builder's mate.

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Hi Cahir,

Really, really good. Put it this way: when I had it on test, I actually asked Kia if I could hang on to it for a couple of extra days. Sharp steering, balanced chassis, spacious cabin (for a coupé) and really well built. 

There's a 1.4 or 1.6 diesel, but get the 1.6 as it's much better to drive, only costs around €1,000 more and there's no CO₂ emissions penalty.

Cracking car all round, really.

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Hi Leo,

It's always very difficult to analyse such things from afar so we'd advise you bring the car to a good mechanic. It could be something stuck in the tyre or brake disc, it could be a damaged tyre, it could be a worn wheel bearing or something in the transmission.

Best of luck getting it sorted

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Hi Charles,

Ah, the second-generation Avensis - the taxi drivers' friend. Hardly surprising you see so many on the rank of a Friday night, as they're dependable, comfy and spacious. 

This Avensis was from the last line of big family cars that came mostly as petrols, so the 1.8-litre VVTi engine is the most common. It's a good one too, economical and smooth if just a touch noisy by modern standards. The 2.0 and 2.2 D-4D diesels are rarer, noisier and have iffy clutches - one of the Avensis' few mechanical weak points.

Cabins are robust, hard wearing and massively spacious, which is all good, but listen for rattles from the steering column - not a major issue, more of an annoyance. 

Finally, check the suspension and steering for any wear and tear, they're the only other mechanical weak points.

Actually, this Avensis is also, somewhat secretly, rather good to drive - it used the same steering and rear suspension as the last-generation Celica coupé and while it's no hot-rod, it's better than you might think.

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Hi David,

Depends on your driving style, but 55mpg should be a gimme, 60mpg if you're a bit careful and 70mpg if you're driving with baby kittens under the accelerator pedal.

You're quite right about 1.2 engines, at least for now. They usually have to be worked too hard to drive at normal speeds to get the best economy and, for now, 1.6 seems to be a displacement sweet spot. That will change though - just check out the economy you can get (with some effort) from Volkswagen's 1.2 TSI petrol unit.

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Hi Paul,

The coil pack would be the first place to start, as they fail regularly in that model Laguna. The vibration, we suspect, is from misfiring at low speeds.

It's definitely a job for a qualified mechanic, but let us know how you get on.

Expert answer

Hi Heather,

We spoke with Volvo Ireland about this and apparently it could be one of a handful of things wrong, ranging from inexpensive to quite costly. The best thing to do is bring the car into your local Volvo dealer so it can be hooked up to a diagnostic machine. This will quickly tell you what is wrong and they'll then tell you the price.

Let us know how you get on