^cool ..
like i belived then.. there is a power loss in theory..but its so small that it doesent matter.. or gets dealt with by the quattro system not loosing traction..

PS
I dont think the RS6 will be much heavier than the E63/M5 i guess its just about audi taking it to the next level then

so now ppl cant use this as an excuse?

or can they

The tread is still open..lol