I'm the worst for this.....
Don't have a Z4 yet, but I was thinking of "General Zod" for when one arrives
My two Alfa's are "Bella" (MiTo) and "Lilly" (Spider)
Previous cars.....
Couple of A3's- "Ruby" & "Doodey" (Audi Doodey.....

)
Lada Riva "Stalin" - 'cos that's what it did, constantly
Mini Cooper "Henry" (splash it all over)
Mini Mayfair - can't remember
VW Polo "Marco"
Mondeo "Mandy"
Land Rover Defender "Olive"
Fiesta "Matilda"
Escort "Betty"
Austin Montego Estate "Twisted Sister" (chassis was bent)
Austin Montego Saloon (dark brown with brown velour) - can't remember
Volvo 340 variomatic auto - shall remain nameless, the p.o.s.
Nova GTE "Siobhan"
Saab 900 Convertible "Scab"
Rover 825i - "Betsy"
Rover 214si - can't remember
Audi Coupe Quattro - can't remember
Triumph Acclaim - can't remember
I could go on and on.... e.g. previous bikes :- (note, sometimes cars are boys, but bikes are ALWAYS girls)
Bultaco Sherpa - "Claire"
Yamaha YZ250 "Erica"
Honda CB1000R - Can't remember
Aprilia Pegaso "April"
Sukuzi VanVan "Stephanie"
Triumph Tiger 1050 - can't remember
Kawasaki ER-500 "Renee"
Yamaha ZY125 - "Madeleine"
The list of bikes goes on and on,,, but my brain is hurting (with effort and embarasment)