I used a Dodge Challenger R/T [1970] RM which had to be fully tuned just to match up, but its pretty good, a non-RM'd one with a full transmission helped me win the muscle car races from the 2 previous leagues so its a good useful car, its also decent for the Extreme American Car Championship [or something of a similar name], a Chevy Camaro SS 1969 RM could also work, but i havent tried that.