Renault Laguna III - 2.0dCI Sport Tourer Owner's Review - Gromit
If petrol is now back in the equation, and mpg can be traded for pep, look no further than the Subarus linked to above :-)
All joking aside, I'd looked at a V70 petrol and diesel before buying mine. It would have taken many years to break even on the difference in purchase price between the diesel and petrol - and the Subaru was automatic, a year younger, and under half the mileage of even the petrol Volvo.