Premeir Protective is A+ and worth the $$$.
I've also used Dr Colorchip in the past for a few minor chips and was pleased with the results.
I don't think it would work too well for deeper or larger abrasions though.
2013 E92 M3 Individual
Sold: 2011 E92 M3 SSII | Sold: 2008 E92 M3 SSII | Into a Wall: 2008 E92 M3 SSII | Sold: 2007 E92 335i JB