GS 300 is powered by a high-output, 220-horsepower 3.0-liter inline-6. GS 300 comes standard with cloth upholstery and automatic climate control with filtration and deodorization. Leather upholstery is optional ($1,660) and comes with a memory system.

GS 430 comes with a 4.3-liter double overhead-cam V8 that produces 300 horsepower. GS 430 also comes standard with perforated leather upholstery; memory for the driver's seat, outside mirrors and steering column; and high-intensity discharge headlights.

Both models are equipped with a five-speed electronically controlled automatic transmission, but the GS 300 also features E-Shift manual controls on the spokes of the steering wheel.

Options include a navigation package ($2,000) and a superb Mark Levinson audio system ($1,250).

Safety features that come standard for both models include Vehicle Stability Control, anti-lock brakes with Brake Assist, traction control, dual frontal airbags, seat-mounted side-impact airbags for driver and front-seat passenger, and seat belts with pretensioners and force limiters.The GS models also come standard with side curtain airbags for the driver and front passenger, very important because curtain airbags can provide protection for the head and upper body in side impacts.