You can't buy what isn't on sale. In Europe most cars have been available in diesel or petrol versions for decades, and it's very rare to find somewhere that s

You can't buy what isn't on sale. In Europe most cars have been available in diesel or petrol versions for decades, and it's very rare to find somewhere that sells petrol but not diesel - not so much in the US, where other than in big rigs etc. diesel was only really found/available in pickups until recently, and diesel pumps can be rare. The big appeal of diesel in Europe with their higher fuel costs is the better MPG - gas is cheap in the US so there isn't as much demand for vehicles with higher MPG Other manufacturers 'pass' US diesel emissions, so it isn't impossible to comply with the laws