Expert answer

Hi Stephen,

Yes, they're pretty good actually. Mechanically, just keep an eye on the usual diesel particulate filter and make sure that the clutch engages and disengages cleanly and easily. The only other worry is over electrics. There were repeated wiring loom problems with early cars, so if any that you're looking at display even the slightest electrical gremlin, walk away.

Hope that helps

Expert answer

Hi Caroline,

In the UK, the SRi is the sporty model in the Insignia range (without going for the full-vat VXR model) and is the third level up from base, ahead of the ES and Exclusiv. It should come with 17-inch alloys, lower and sportier suspension, a leather covered steering wheel, front foglights, sporty bucket seats and, depending on the engine, the brilliant 'Flexride' adaptive damping system.

Bluetooth is an option on the SRi - it only comes as standard when you trade up to the Tech Line model - but you can connect your iPod to any Insignia through the standard aux-in socket. You just need to buy the right cable. They cost around €15-20 from any good electrical retailer, though of course the iPod can't be controlled by the car when connected that way.

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Hi Carmel,

Yes, it appears there is. The problem seems to occur with the hose that connects the throttle body to the intercooler. If a split or crack develops in that, it leads to a loss of turbo efficiency and a drop in engine power. The problem can be intermittent or sometimes more pronounced. There also seems to be a more complicated problem with the solenoid that controls the turbo.

Expert answer

Hi Carmel,

They're not bad, but watch for intermittent electrical problems, especially the starter motor and alarm and locking mechanisms. The dual-mass flywheel on the diesel models can be problematic too, while the rain seals around the boot can occasionally channel water straight into the boot when you open it.

Expert answer

Hi Hugh,

Should be fine. Vauxhall in the UK is confident enough to offer a lifetime warranty on the same model, as long as the servicing is carried out at a main dealer, on schedule. As long as the history is on the button, you should be fine.

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Hi Ciaran,

Yes. We like the Insignia and it does a pretty good impression of an Audi A4 for a lot less money. As with any long-run mass-produced car, keep an eye out for faults and while the Insignia is well built, gearbox and steering issues are not unheard of. The 2.0-litre CDTi diesel engine is the best one to go for, especially in ECOFlex form as it's in Band A for road tax and if you can track down one of the gorgeous and practical estates. you're on to a winner.

Let us know how you get on

Expert answer

Hi Alanna,

Anything pre-2008 with a petrol engine is pretty hard to shift on these days, sadly, so I'd reckon you're looking at a value of possibly as little as €5,500 for the Mazda3 at the moment. To get the best from it, I'd suggest staying within the Mazda family (a Mazda dealer will usually give you a better trade-in on a Mazda than will another dealer) and trade up to a Mazda6 Estate. Loads of space, brilliant to drive, reliable and, with the 2.2-litre 129hp diesel, very economical too. SUV? Do you live up a mountain or at the far end of a rutted dirt road? No? Then you don't need one - stick to the family car market and the Mazda6 size class (which also includes cars like the Toyota Avensis, Ford Mondeo, Volkswagen Passat and Opel Insignia) is  where you'll get the best bang for your buck.

Let us know how you get on

Expert answer

Hi Eddie,

Our latest review of an Opel Insignia is here. As you can see, we awarded it 3.5 stars out of five. It's not a bad car in the least, but if buying new there are loads of talented alternatives at the same price (and a facelifted Insignia arrives in 2014).

Do a search above for 'Insignia' and you'll see we've helped many buyers choose between it and other vehicles, but if you're trying to make that decision please do come back for more assistance.

Expert answer

Hi Richard,

By and large, yes, the Insignia's a reliable old thing, but there are a couple of checks to make. Ensure that the engine is pulling strongly in all the low gears, as the turbo can give trouble, especially with the exhaust gas recirculation (EGR) valve. If it's a specced up model with heated seats, check that the one on the driver's side works as they can be fragile. The lesser-used passenger one doesn't seem to give much trouble.

The 'Service Car Now' light seems to be a recurring problem and can come on a bit randomly - usually because the dealer forgets to reset the oil monitor at the last service. The boot seals, especially on the hatchback, can be iffy and allow water in especially when opening the boot when there's standing water on the car. It's a design flaw. There was also a recall to sort out an alarm system issue causing it to go off randomly (often at 2 in the morning...) so make sure that's been done.

Expert answer

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).