In reality, most of these come without F1, its more like F1
borrowing these ideas.
Carbon fibre already exist without F1 cars, besides, how many cars
u know has carbon fibre?
Wishbone suspension had been around for a long time,
Aerodynamics is a no brainer.
The origin of traction control im not sure, but if u are an
engineer, its also a no brainer for improving safety and
driveability, as with many other technologies.
More efficient engine? I doubt so. These engines are design for
higher rpm and torque, and lighter weight, and where cost is no
issue, not necessarily more fuel efficient. Just like how
Airplane's requirement for engine specs are different from normal
cars.
The fuel consumption of an F1 is known to be equivalent to an a
Boeing 747.
(stated by someone somewhere)
The energy recovery feature u mentioned, is already an area of
intense research recently in commercial engines, without F1 in
mind.
Though i agree the high sponsorship and competitive nature of F1
sport allow $$ to be pumped into this area which may produce new
techniques, again perhaps where cost is no issue.
Of cos a few F1 technologies made it to commercial cars, but they
are few and really high-end cars. The linkage to F1 is mostly for
marketing.
Moreover, current trend is towards fuel efficient vehicles.
If u had been following the latest development in new green cars,
they are all developed with commercial cars in mind.
It is rather the F1 cars that borrow these new technologies.
Eg advancements in battery/super capacitors, motors, for
electric/hybrid drive.
