In
terms of performance, the R8 LMS Grand-AM will also come with a modified
engine and the addition of an air restrictor that will drop the output
of the R8 LMS from 493 horspepower to around 450 to 470 horsepower.
Certain elements of the R8 LMS will also be removed for the Grand Am
version, including the anti-lock system and traction control.
Incidentally, Grand Am rules view these technologies as driving aids in
the US.