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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 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 John,

I'm afraid without knowing the year of your S40 it's impossible to give you an idea of the value but I would suggest trading it in rather than trying to sell it yourself - it saves an awful lot of hassle and heartache. As for what to get, try either a Skoda Yeti or a Nissan Qashqai. Both are as reliable as they come, comfy and with a higher (but not too high) seating position. And both are spacious enough that when those reared kids start dropping off the grandkids for a weekend, you'll have room in the back...

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Hi Thomas,

If you get €500 I'd say you'd be doing well.

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Hi Susan,

Nothing at all really, and if you're picking a Micra then you should be on a winner, reliability-wise. Fleet cars are often a better bet than private cars simply because their service history should be full and all major maintenance done on time and schedule. Will it have had a harder life than a private car? Possibly, but just have a careful check over for signs of excess wear and tear and if you're concerned, walk away; plenty more out there.

Let us know how you get on

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Hi Thomas,

It's very hard to tell I'm afraid, as some people (and indeed dealers) baulk at the idea of a Japanese import, regardless of the car's actual condition and history. It's basically a knee-jerk reaction, but that's essentially what a marketplace is - a series of knee-jerk reactions leading to a consensus. Anyway, I reckon you're looking at a value of around €1,000, give or take.

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Hi Felicity,

Go for the diesel. By personal experience I can tell you that it's close to impossible to sell a Mk1 Qashqai with a petrol engine. It's a fine car and potentially the better buy for in-town use, but the market wants diesel, so follow the market.

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Hi John,

No major reliability issues with the Tiida - it's a typical Nissan in that regard - and it's also well equipped with standard Bluetooth phone connection on all models. It is a bit deathly dull, though, something that even Nissan admits to. Still, if you're looking for reliable, uncomplicated motoring...

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Hi Paula,

Yup, you're onto a winner there. A lot of motoring writers get a bit sniffy about the Nissan Micra, but actually it's a car with which there is very little wrong. That third generation model that you're talking about is actually probably the best one of all, with a nice, comfy, spacious interior, a peppy little 1.2-litre engine and a chassis that's actually more entertaining to drive than you would think. Of course, the automatic gearbox will sap a little bit of power, but as long as you're not entering any traffic light Grands Prix, you'll be fine. Reliability simply shouldn't be an issue as the Micra has always been conspicuously well built. Just check carefully to make sure it's been serviced regularly and that the oil for the automatic gearbox has been changed regularly too.

Let us know how you get on

Expert answer

Hi Trevor,

It'd suggest a Nissan Qashqai, or if you need something a little bigger on the inside, perhaps a last-gen Honda CR-V. As a matter of fact, I have elderly relatives with a CR-V and they report no issues with getting in and out, and it's an especially comfy car on the move. Actually, with the Honda brand in mind, if you need something a little bit smaller than either of those, but still with a slightly higher seating position, try a Honda Jazz – not only are the seats quite high up, but the doors open particularly wide, making it easier to get in and out. As always, try thoroughly before you buy and don't be afraid to ask sales people for some help and advice – the best ones will be more than happy to help you.

Let us know how you get on in the comments below