Two models are available: the six-cylinder GS 300 ($38,605) and the V8-powered GS 430 ($47,405).
The GS 300 engine is a high-output, 220-horsepower 3.0-liter inline-6. The wickedly fun GS 430 comes with a 4.3-liter double overhead-cam V8 that produces 300 horsepower. Both are equipped with five-speed electronically controlled automatic transmissions, but the GS 300 features E-Shift manual controls on the spokes of the steering wheel.
In addition to the more potent engine, the GS 430 provides leather for the seats, steering wheel, and door panels; memory for the driver's seat, outside mirrors and steering column; high-intensity discharge (HID) headlights, and slightly wider P225/55R16 tires.
A leather package for the GS 300 costs $1,660. DVD navigation, a six-disc CD changer, and a Mark Levinson audio system are also offered, either individually or as a $7,945 package.
The GS 430 we drove featured the $2,520 Premium Package, which includes a six-disc in-dash CD changer, power moonroof, and heated front seats.