Lexus officials claim that the GS 450h will deliver power that is similar to that of a 4.5-liter V8. As the first-ever rear-wheel-drive hybrid, that promises to be quite a ride up the torque curve. Built to add to the GS’s growing reputation for power and technology, the 2007 Lexus GS 450h is a hybrid luxury sports sedan, equipped with the same powertrain found in the RX 400h – a V6 engine mated to three electric motors that delivers maximum acceleration for superb performance. According to Lexus, the GS 450h beats even the new eight-cylinder Lexus GS 430. Aside from the powertrain differences, larger wheels and a few minor appearance changes, the 2007 GS 450h is identical to the GS 430 in terms of technology, interior and styling.