Should I buy a petrol or diesel car?

I will be looking and buying a used car soon. With all the emissions laws around, what will be best to go for, a petrol or diesel?

Are diesels a definite no for city driving?

I'm considering getting a secondhand BMW 3 or 5 Series but the vast majority of my driving is in the city and I rarely do over 20 miles per day. There are some great deals on diesel cars but should I avoid...

Would a pick-up truck be suitable for off-roading and city driving?

Following your advice five years ago, I purchased an old Range Rover Sport - which I loved and was very practical with a reasonable amount of off road use. Rather rashly, but sensing some expensive repairs...

Should I buy a diesel car if I live in a city?

I live in London, is it better to buy a new petrol or diesel car at the present time?

I do very low mileage and short journeys, should I get a hybrid?

In the main, I only drive twice a day for 1.3 miles each way. Should I keep the Lexus IS 2.5 V6 petrol or swap to a small petrol car, or even a hybrid like the Toyota Yaris?

What are the rules surrounding vehicle emissions stickers when driving in France?

I'm told that certain French cities now require cars to display a sticker stating their official emission values. Apparently lots of Brits are being fined by the French cops for failure to comply. Is this...

Is it more fuel efficient to do less miles even if there's more stopping and starting?

I've found a route to work that is quicker, quieter and less miles. On the motorway it's 18 miles, through the town and stop/start at lights (although very quiet at that time of the morning) its only 10.5...

What small automatic would you recommend for long and short trips?

I'm 75 and I need a car for both short journeys around London and long journeys in France. What would you recommend: the Honda Jazz hybrid which looks reliable and easy to get into, the Toyota Yaris Hybrid...

My 2012 Mercedes-Benz ML-Class is doing 10mpg less than its real mpg states - is there something wrong with the car?

I've been monitoring the mpg of my 2012 Mercedes-Benz ML250 since purchase. I would say 95 per cent of my driving is done around London. According to http://www.honestjohn.co.uk/realmpg/mercedes-benz/ml-class-w166-2012/ml250-bluetec...