holy moly...i have seen so many exotics and rare cars, let me see:
in England-
Ferrari Enzo, 360 Modena, 512
Lambo Murcielago
Maserati 3200GT
Audi RS6
Porsche 911 turbo, GT3
Bentley GT Continental
Mercedes Benz SL600
TVR Tuscan
Mercedes Benz 300SL ( in a showroom with other super expensive classics)
in France -
BMW M3 convertible
Mercedes Benz SLK 32 AMG
in South Africa-
BMW M5, M3
Lambo Diablo
Porsche GT2
Mercedes Benz C32 AMG & C55 AMG
Jaguar S type-R
Subaru WRX STi
in Dubai, Saudi Arabia & Bahrain-
Corvette Z06
BMW M6, Z8
the Sheik of S.Arabia's own 6 wheel drive Land Rover
Bugatti EB110
in Australia-
Bentley; older model, dont remember name or year of production ( in my town

)
BMW 760i
a 650kw Supra featured in a motoring mag here (f*** it was awesome)
Jaguar XJR-s (also in my town)
Porsche (heaps of them)
Skyline (i'm guaranteed to see atleast 5 a month)
Mitshubitshi 3000GT
Holden GTS Coupe (owner and [probably]son in separate GTS, doing burnouts at stoplights)
Mercedes Benz SL500
in Zimbabwe-
Porsche GT3, 911 (owned by my friends) - both older models
Mercedes SL 350 (another rich classmate) - older model
Ford Sierra Cosworth; restored and beefed up (owned by my maths teacher)
Ferrari F355
Its all i can remember atm.