IT COMES down to what you want your car to do. The VW 2.0-litre turbo-diesel has 320Nm or torque while giving good fuel consumption, but diesel is generally more expensive than regular unleaded petrol, so the comparison isn't all that favourable. If you compare it to a car that uses premium unleaded, the diesel looks much better. The other problem is that most diesels come in prestige European brands, so you're also paying for the badge as well as the engine. I like the VW diesels: plenty of punch and they're certainly fuel misers.