I bought this when the 305 class was around and ran it 4 races it handles like a dream when I wasn't having dumb issues it ran up front previous owner won many times with it the motor in it is a blown 305 everything else works perfectly I'm not sure witch class it could run in back then was told it could run in the sport mod class? If you want a fun fast car here you go also have documents from previous owner kept set ups at several tracks many extras with it