Lexus isF is the top version of the Lexus is line. This is the first car modification of F cars from Lexus. The first generation Lexus IS F was introduced on January 8, 2007. The fact is that it has a super-powerful engine (423 hp), and a considerable torque (51.5 kg-m), and the tires remain the same as those of the basic IS model of the "S" configuration.