40. 1999 Pagani Zonda
Just five of these Italian dynamos were produced 20 years ago and introduced at the Geneva Motor Show. A 366-cubic inch Mercedes-Benz V-12 engine allows it to accelerate from 0-60 miles per hour in 4 seconds flat, and up to 100 miles per hour in 9.2 seconds. Creator Horacio Pagani formerly worked for Lamborghini as head of its composites department, and worked on this first model for seven years before its Geneva debut. Pagani had planned to name it after his good friend and five-time Formula One winner Juan Manuel Fangio, but the latter passed away in 1995.