That will be great news for the Lexus F enthusiasts.The Lexus IS series now has a big brother, the IS F. Tighten your seatbelts, friends, for it takes direct aim at the BMW M3. Yukihiko Yaguchi, former head of Lexus brand strategy, and his band of Lexus skunkworks brothers created it working on their own time. These engineers include friends at Yamaha, which has long worked with Toyota in engine development, and friends at Toyota Technocraft