here is the fastest 0-60 times for cars, dont think all of them are production.
http://www.supercars.net/index-sixty.html
1. 2.6 seconds 1994 Dauer 962 LeMans
2. 2.7 seconds 2000 Chevrolet Camaro ZL1 Concept
3. 2.7 seconds 2000 Dodge Hennessey Viper Venom 800TT
4. 2.7 seconds 1999 Leblanc Caroline
5. 2.8 seconds 1995 Renault Espace F1 Concept
6. 2.9 seconds 1991 Audi Avus Quattro Concept
7. 2.9 seconds 1995 McLaren F1 LM
8. 3.0 seconds 1999 Ferrari Koenig F50
9. 3.0 seconds 1995 Jimenez Novia Concept
10. 3.0 seconds 1999 Nissan Blitz Skyline GT-R R348
no the enzo is not the fastest their are plenty of cars out there faster like the 2000 koenigsegg cc (its not the fastest but its my fav of the supercars)
http://www.supercars.net/SDBQ?id=935
alos check out top speeds
http://www.supercars.net/index-top.html
1. 433 kph / 269.1 mph 1938 Mercedes-Benz W125 Record
2.409.9 kph / 254.7 mph 1988 Chevrolet Callaway Sledgehammer Corvette
3. 406 kph / 252.3 mph 2002 Bugatti 16/4 Veyron
4.403 kph / 250.4 mph 2001 Bugatti 16/4 Veyron Concept
5. 402.3 kph / 250.0 mph 1994 Dauer 962 LeMans
6.402.3 kph / 250.0 mph 1992 Vector WX3 Concept
7. 400 kph / 248.5 mph 2001 Lotec Sirius Concept
8.400 kph / 248.5 mph 1939 Mercedes-Benz W154 Record
9. 390 kph / 242.3 mph 2000 Koenigsegg CC
10.386.2 kph / 240.0 mph 2002 Koenigsegg CC 8S