ENGINE
8.0 V10 all alloy started of as a cast iron truck engine but with the help of Lamborghini turning it into a alloy work of art.
1992 to 1995 400 bhp 465 foot pounds of torque
1995 to 1996 415 bhp 488 foot pounds of torque
1997 onwards 450 bhp 490 pounds foot torque (as used in GTS )

0 to 60 4.2 seconds
0/100 and back in 14.78 seconds

The first model Vipers had no windows no door handles or external locks you do get wet weather gear with the car though curtain windows. You can however get lots of after market accessories.
1996/7 Vipers had locks electric windows and a factory option removable hard top .