Cool, that should makes things closer.
The A5 3.0 TDI with 310bhp 1600kg is 193bhp per tonne
The K03 S2 with 260bhp 1380kg is 188bhp per tonne
But, the Audi is going to have monumental torque, but 4wd loses no doubt... would be quite close everything being setup right.
I've no doubt though the A5 is going to have a MUCH easier time getting the power down AND accessing it more easily throughout it's rev range.
What sort of figures do PDT/rTech get from Stage 2 K03?