What's a more competitive and fun to drive AutoX car, an E30 M3 or an early 80's 911SC. I'm considering both as my next car (primaritly autoX and weekend trips, no commuting). Also considering a 911 3.2 Carrera (84+) if I can afford one. Any comments? I'm also wide open to suggestions for other cars as well (my price range is ($10,000-$18000).