If you want to base it on pure performance, then the RS America is every bit as good as a true "RS". I know from trying to hunt them down on different racetracks around the country with my 73 RS lightweight replica. RSA's are dang fast... the bigger motor with more torque, ABS brakes, more sophisticated suspension more than make up for the excess weight they carry. Do they feel like a 73 RS in nimbleness... likely not, but they are powerfully fast machines on the track or autocross circuit for that matter.
I still like my 73 RS replica, and don't plan on trading it in on an RSA.
