Yes ojis, I remember Wiedeking saying "pleasure begins at 4500 rpm, this is where the diesel ends"...
And yes, diesel will be more expensive because of pollution... And I'm sorry but a diesel is not sporty. It has no sporty characteristic. It is powerful, but not sporty. This is my problem with Porsche diesel, AMG diesel, R8 diesel...It's ridiculous.
Nice catch the tractor. But it looks way better than a Cayenne, and it is useful. Not a useless SUV with sporty pretention and a big badge to sell it because otherwise everybody would laugh at it.
And racing does not mean pleasure. A F1 is extremely fast and efficient, and extremely awful to drive. Diesel may win races, it is way from beeing as pleasant as petrol in a sportcar.