I put a nice dent in my car last month hitting a cone doing about 70MPH at an autocross event. Unfortunately that did not rub out. All the marks that are normally left by cones do come right off with a little scrubing.
-David
__________________ 1996 993TT - current
2001 Boxster S (sold) 19" SSR GT3 - Cross coilovers - Custom Magnaflow exhaust - B&M Short Shifter - EVO intake - GT3 Seats - Hardtop