all the rallycross tracks have asphalt portions/sections in them every lap, surely the bf1 is way faster there than on the gravel.
I say the bf1 is overall NOT faster, and let's stick to it by saying you can trotle up only as fast as the rb4 can and top speed is met by the rb4 too on the asphalt portions.
which virtually leaves gravel --only-- to compare the 'offroad' abilities of the bf1.
and that's what doesn't make me think about the bf1 as fastest rallycross vehicle.
sorry if i'm too stupid to see your points, and who knows, maybee i'm all wrong there.
let's try and find it out on a server...
regards