What's the best car you've seen in your life. The best car I saw is the Porsche 918 RSR at the Qatar Motorshow and the Bugatti Veyron Grand Sport. Last but not least, I saw a Pagani Zonda F Roadster.
I've been right up next to a Ferrari F1 car at a promotional event just outside my hometown, it was in about 2001/2. We took a video of it but I honestly don't know what happened to the video. I've also seen an Aston Martin DB9 driving around, as well as a quite rare 2004/5 Rover 75 V8. More recently, I've seen both an Evo X and a Focus RS MK2 in my street.
ive seen sooo many gallardos, i saw a few LP640s, a lot of vipers, lots of modenas, few F430s, some aston martins, i saw the top of the line M3 2011 , i saw some carbon fibre beemers, ALOT of porshes.
Best thing ive ever seen was a Porsche Carrara GT.
Probably between a carrera GT I saw getting a servie at the dealership (Looked awesome up on the lift), A merc SL300 gullwing, a convertible E type jag at the gas station, and a 599 I've seen go by. These cars are pretty expensive and unique here since cars have like a 35% tax on them. There's probably less than 10 non-replica lambos in the whole island, and probably less than 5 of the newer models
Racecars: couldn't really pick a "best" but I've seen a decent bunch. Many Grand Prix cars from pretty much every decade, four Enzo FXX, about six different 250 GTOs, a good portion of Ferrari's successful Le Mans cars, other odds and ends. Unfortunately I haven't rubbed shoulders with that crowd in a while
I've also seen an Aston Martin DB9 driving around, as well as a quite rare 2004/5 Rover 75 V8. More recently, I've seen both an Evo X and a Focus RS MK2 in my street. 
