Sapphire black... I've only had my car a month, so I'm still in the honeymoon phase. I have been washing it almost every day.
I use optimum no-rinse for most washes.
06 330i 6mt Spt- Eibach Springs, BMW Perf Susp, Supersprint Exhaust, BSW Audio
RIP-94 325i 5mt 4d- M3 springs/susp, Z3 wheels, Chipped, Intake, Exhaust= FUN!