Expert answer

Hi Derek,

OK, you haven’t told us the year of your Mazda so that makes it a little hard to value, but seeing as it’s the 1.8 petrol I’m going to guess that it’s around 2006-2007. If so, then I’d say that the €4,400 trade-in offer is actually pretty good.

As to what car to get, if you’re looking for a small hatch then it’s very hard indeed to look past the Volkswagen Golf. It’s one of the world’s best-selling cars for a reason, and as long as you buy one with a full service history and keep it looked after, you should get plenty of years of reliable service out of one yet.

Ditto for the mechanically identical SEAT Leon and Skoda Octavia. The Opel Astra GTC is a fine car in many ways — handsome, good to drive, decent quality, but it was hamstrung by poor diesel engines (other than the range-topping 2.0-litre) and unless you’re looking at the 1.4 petrol turbo model, it’s possibly not the best purchase.

The Focus is definitely a good buy, and that TDCi diesel is frugal to run, but you just have to be slightly cautious about diesel power right now. If you’re not doing big miles, you’d be better off with a petrol car.

Expert answer

Hi Anne,

The Captur, which has just been updated, is one of the best selling small crossovers around and it’s not hard to see why - it’s gorgeous, a really good looking car. Roomy enough inside too, and with a pair of excellent engines (either a 900cc turbo petrol or Renault’s long-serving 1.5 diesel). The downsides are that the cabin is quite plastic and it’s only very ordinary to drive.

The Peugeot 2008, by contrast, is rather more agile and sharper to drive, and also has some excellent engine options, especially the 1.2-litre PureTech petrol turbo unit. It’s also a little roomier than the Captur in the back, even if it’s arguably less handsome on the outside. On balance, it would be the Peugeot that we’d prefer, but you should also have a look at the likes of the new Suzuki Vitara (good to drive and very ruggedly reliable) and the Honda HR-V (a little larger and more expensive, but with exceptionally good quality on its side).

Peugeot 2008 review

Renault Captur review

Honda HR-V review

Suzuki Vitara review

Expert answer

Hi Val,

The 3008 is an excellent car and there’s just about enough space in the back for three child car seats in a row (although if that’s your ultimate priority, then wait for the 5008, which is due on sale in July). Of the range, Allure spec seems to be the best balance between price and equipment, and the best engines are the 1.2 turbo petrol (if you’re doing low to medium mileage) or the 1.6 BlueHDi diesel (if you’re doing lots of long journeys). 

Some relevant reviews:

Peugeot 3008 1.6 HDi Allure review

Peugeot 3008 1.6 HDi GT Line review

Peugeot 5008 1.2 PureTech review

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Hi Paul,

Yes, it can be. The N47 2.0-litre diesel engine had an issue with its timing chain, which had a nasty habit of snapping, and which was located right at the back of the engine, against the firewall, making it hard to access or inspect. BMW claims to have fixed the issue, which affected engines produced between 2007 and 2011, but it’s wise to tread carefully, make sure you buy only cars with full BMW service histories, and keep that service history up in case the problem occurs. 

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Hi David,

There are no major reported reliability problems for the AMG M156 V8 engine, other than that they can occasionally develop issues with the bolts that hold the engine head in place. Mind you, a huge amount will depend on how well the previous owner looked after it. While reliable, AMGs are of course bought for their high performance, and if the previous owner has thrashed it about, or not kept it serviced properly, then it could be troublesome. A full book of service stamps should be a good sign, though.

As for spare parts, I really wouldn't worry too much about that, as car makers produce spare parts for a very long time after a vehicle goes out of production.

Expert answer

Hi Andy,

If you're only covering 10k a year mileage then you're probably better off in a petrol, so go for the 1.6. It's a solidly reliable engine too. If you want some alternatives, then maybe have a look for a Toyota Corolla Verso or a Honda FR-V, both of which come with pretty frugal petrol engines and are hugely reliable. 

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Hi Declan,

Yup, it's exactly the same car. Opel changed the styling at the front, tidied up the dashboard design and gave it some new engines, but the overall structure, body and dimensions remained the same. 

Read our Opel Mokka X review here

Expert answer

Hi Kieran,

Yes, turbocharged petrol engines do often have exhaust gas recirculation (EGR) systems and dual-mass flywheels, but they are far less likely to cause problems due to, respectively, the different exhaust gases and the torque characteristics of the engine. Added to which, petrol engines work at lower combustions pressures and with less vibration than diesel engines so there's a little less wear and tear to worry about.

No, turbocharged petrol engines don't have particulate filters as, for now, they're considered 'clean' enough not to need them. That will change in the coming years, however.

Finally, the low-down-power thing is simple physics. Most turbocharged petrol engines and their diesel counterparts are pretty close on top-end power numbers (generally grouping around the 110-120hp level), but the difference you're talking about is torque - turning force, that low-down lugging sensation. Some of that is down to turbo design and the fact that a heavier diesel engine can accept higher turbocharger pressures, but most is simply down to the fact that diesel burns from compression ignition, which generates more torque and makes the engine feel more muscular at lower rpm. 

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Hi Martin,

It’s going to be a lower-slung, 'coupe' version of the X1 SUV, with a higher price tag and a coupe-like roofline in the mould of the bigger BMW X4 and X6. It’ll mostly carry over the engines and chassis from the X1, which means the entry level model could be the 150hp 2.0-litre 18d engine. We’ll have more details towards the end of September after the car is officially unveiled for the first time at the Paris Motor Show.

Expert answer

Hi F D,

Short answer? We don't know yet. Theoretically, petrol engines heat up much more quickly than diesel engines (mostly because they're less thermally efficient) and therefore shorter journeys are less of an issue in that respect. It just depends on how much heat you need to generate to clean the filter and for how long. I'm sure that car makers will claim, as they did with diesel, that the filters are designed to be maintenance free, but then we've heard that before haven't we?