No such thing as a favorite car in my book; there's been so many great autos made over the years it's impossible for me to boil it down to one.
Sunday Driver Convertible: Jag '50s XK 120 or 140 DHC (140 DHC shown)
Daily Driver Sedan: Dinan BMW E39 M5
Sunday Driver Sedan: '30s Packard
Sunday Driver Exotic: Tough category, but I think the Porsche Carerra GT gets it
Daily Driver Exotic: Ruf RGT12 (650HP version)
EDIT: Darn! Must be a pic limit per post; oh, well. Needless to say, there are about 12-14 other cars I'd fill a garage up with.