When I was looking for my Cabrio, I searched for a black on red 335 with navi for over 6 months before giving up... SOOOO rare! I still kick myself in the ass everyday for giving up, because it is SUCH a cool upgrade.
Navi is around to $2000.00 mark when buying new from the dealer, thing is, if you don't have it, they cannot retrofit it later because its integrated into the dash design itself, which totally sucks.
Bluetooth works without the Navi system, but I believe it is still an option... I have it on my car and LOVE this feature.
Black Sapphire Metallic | Coral Red | Brushed Aluminium | 6MT | ZSP | ZPP | PDC | Bluetooth
Shadowlines | Matte Grilles | Aero Lip | BMW Performance Pedals | Smoked Reflectors | LLumar Tint 40%
KW V2 | VMR V710 | Super Sports | BMS JB4 | BMS DCIs | HPF Intercooler | UUC EVO3 SSK | UUC RK7 Shift Knob