the pick of the worlds road cars.

Anything you want.

But has to be diesel. Has to be a road car, therefore has to be fully road legal and run on standard pump diesel. The engine must have also come with the car from the factory ie. you can't put an Audi V10 diesel in a Fiesta.

What would you buy ? What would you do to it modifications wise ?

I'm hoping this could be an interesting thread do your best boys