While that octavia looks quite nice, has an impressive list of mods and nodoubt is quite quick (after it wheelspins on the spot for 5 minutes and has trouble going round corners). There is no way it could get round a track even close to an M3. In a straight line my money would still be on the RWD, linear power band, M3.
Buy the car, find someone with an M3 willing to test, take a video camera and sort this thread out.
Buy the car, find someone with an M3 willing to test, take a video camera and sort this thread out.