clv101 said:How come? Is it not better to emit less pollutants into the air we all have to breath?
Do you genuinelly beleive somebody would pay an extra £4000 for the diesel version of the car simply to emit less pollutants if fuel economy was not an issue for them?
This isn't the Peakoil forums you know

Even if he isn't paying for the fuel himself, his company will be - a lower fuel bill means a more successful company.
The saving in fuel will be eaten by the additional cost of the car if he's paying himself.
I just don't see how emissions and economy can be disregarded?
Becuase sometimes, they just don't matter.