I think kind of BMW 123d (204 bhp; 400 nm (the same as the 306 horsepower petrol engine in 135i)) would do very well in Lfs.
Would be interesting to drive against petrol engines.
And, Audi won LeMans with TDi in 2006, 2007, 2008, and Peugeot with Hdi 2nd, so......