I feel that the scion crowd has no clue as to how fast other cars are compared to theirs.
i live in socal which is like , mod up your car central. and i actually just drove a scion TC for the last 4 weeks (2005 model).
that said, i've been in various scions over the years and most of them are pretty slow. but toyota figured out that lot of people don't even care how slow their cars are as long as they are acceptable.
to understand scion is to understand southern california car culture (and toyota is based here so maybe that was the idea). people in socal like to mod up their cars for no reason other than to be different. no one really cares if the car is actually better its all about having individual uniqueness, so that they stand out (it is a LA, its what its all about). thats why you see scion TCs with wings and body kits etc. the cars are not that fast (and hell the TC in a straight line is probably about as fast as the FRS). the scion XB with tons of stickers and custom interiors etc, are still slow econoboxes. but i think the idea is that they are personalized.
i have this feeling the FRS/BRZ actually wont for their lifetime sell very well, once the initial adopters are done buying it (kind of like the 370z). the thing is once the real enthusiasts get theirs , the "normal" buyer will look at a TC and a FRS , see that the TC costs $7k less or whatever, and just buy that. its fwd and drives worse. but that saves $7k and they never cared how it drove anyway. thats $7k they can spend on rims and personalization just for the sake of making it modded. people want this like individualization, it has nothing to do with performance. and that is what scion i think is about. in the end the college / teen crowd that just wants a "cool looking" car have other cheap choices, since mos tof them dont really care about performance. so this leaves real enthusiasts and there really arent that many of those.
makes you wonder. the mustang i think sells because its cheap. not because it is RWD or fast, its just that it has a certain image and looks cool. hypothetically i bet if ford made another coupe that somehow also had the same "cool" factor as the mustang but was FWD and cost less, that lots of people would buy it.