See also:

Engine/Transmission/Drivetrain/Performance
The GS gas luxury sport sedan comes in three models - GS 350 RWD, GS 350 AWD and GS 460 RWD. Optimized for low internal friction, the GS 350's 3.5-liter V6 engine produces 303 horsepower at 6,200 ...

Overview
Lexus is expanding choices in its popular IS sport sedan line for 2011, adding a 306-horsepower Lexus IS 350 all-wheel drive (AWD) model and offering a new F Sport Package for the IS 250/350 rear- ...

What’s it up against?
Equipped with a V8 engine, the GS’ biggest traditional rivals come from Germany – namely the BMW 550i and Mercedes-Benz E550. But can-do home-market competitor Infiniti’s new M56 presents serious ...