Base Price: $41,000 / $58,000
Engine: Inline-6 / V8
HP@RPM: 220 @ 5800 / 300 @ 5600
Torque, ft-lb: 220 @ 3800 / 325 @ 3400
Transmission: 5-auto / 5-auto
EPA est mpg: 18/25 / 18/23

"The GS 300 offers standard safety technology including side curtain air bags and the Vehicle Stability Control System (VSC) which helps control loss of traction. Standard luxury features include the Lexus one-touch power moon roof and a six-disc in-dash CD changer. The GS 430 offers standard heated front seats and leather-wrapped steering wheel with controls for the audio system. A Mark Levinson premium audio system is an option. The available DVD-based Lexus Navigation System provides fast performance and multi-language selection. Functions include calculation, route preference, simplified highway junction graphics and dual-map screen mode."
- quoted from the Philadelphia Auto Show 2005 Buyer's Guide

I'm not sure which model this is other than it's a Lexus GS XXX. The display placard mentions 2 versions of the GS300 and the GS430. The buyer's guide description combines both models as well. So, your guess is as good as mine.