The first generation Lamborghini Diablo VT Roadster was introduced in 1995. When released, it was the first open top Diablo available. Sharing the same platform as the VT, the Roadster was fitted with the viscous traction four wheel drive system and the 5.7L V12 engine. While mechanically similar, the VT Roadster featured various updates and styling tweaks to differentiate it from the coupe. Among these changes were: an updated angular front bumper with redesigned fog and indicator lights, an all new rear bumper, a modified engine cover, enlarged air intakes over the rear wheels, and the introduction of SE30-style vertical slats for the rear brake cooling ducts. The interior was the same as the regular VT, yet featured new weather-proof interior materials. The VT Roadster also had new OZ three piece wheels exclusive to the model. Production of the first generation Roadster ended in 1998, with the updated Second Generation VT Roadster available in 1999.