Fast in and slow out, or slow in and fast out (dont remember where I heard that) Assuming all variables are equal (weight, power, braking, driving, etc.) FWD would suffer due to the front performing double duty. Weight bias during braking and acceleration bla bla bla... Fundamentally there is a disadvantage to FWD but that depends largely on the vehicle its being compared to. I think there is a place for fwd in racing, helps bring in variety and competition. I dont remember what series it is (i dont follow racing) but i.e. Realtime Racing runs the TSX, and some other group used to run the protege and moved on to the mazda6.