 Among these spy reports, several photos were shown of a heavily modified and camouflaged IS sedan at the Nürburgring test track in Germany along with other disguised Lexus test vehicles.The previous generation IS 430 prototype vehicle was indicative of future possibilities for the IS series, including the likelihood that a second generation high-performance IS model could come equipped with a V8 engine.It was rumored that there would be a coupé and a convertible version for a 2009 model, as well as a convertible version of the V8-powered IS.