I was going to suggest an E93 earlier but thought it was too predictable; a nice 330i (or 335i!) would be nice to have. Oh, what about an A5 cab, thinking about it, that's my choice.
Current -: 370Z GT Roadster / Qashqai+2 Tekna 1.6dci
Gone -: BMW X3 3.0d xdrive M Sport; E46 330i M Sport Coupe; Mazda RX8 231; Nissan 350Z GT Roadster; BMW E90 330d M Sport; BMW E92 335i SE; Maserati 4200; Nissan 350Z; Honda S2000; Astra Coupe Turbo; Ford Probe