The GS hasn’t changed significantly in many years, though a restyled front, integrated side-mirror turn signals, and new wheel designs were introduced last year.
Kelley Blue Book says "the GS brings a legitimate sense of design passion to its sleekly flowing sheet metal that arguably qualifies it as the best-looking Lexus sedan." Cars.com notes the "long side glass and a steep back window” enhancing the “performance image" of the GS 460. These comments of course would also apply to the GS 350, which is almost identical cosmetically.
Autoblog points out the very subtle changes that the GS 450h hybrid model brings, such as a different 18-inch alloy wheel design, adding that "the badge on the trunk will also reflect the hybrid powertrain." Beyond this, "all other features, including dimensions,” match up with the V-8 GS, Autoblog says. The 2010 Lexus GS 450h is "virtually identical to the GS 350 and GS 460 sedans,” remarks Cars.com, with “Lexus' now-familiar face with its steeply raked headlights and thick C-pillars."
Inside, the GS has a curvier, more cockpit-like theme than the comfort-oriented ES and LS models, with an overall feel that’s a little more European inspired. However, the instrument panel itself is quite conservative in appearance, with a new brushed-aluminum shift plate and dark gray bird's-eye maple wood. The clean look of the instrument panel overall is surprising in a tech-focused luxury car—it's made possible by keeping seldom-used controls out of the way in a drawer.
Edmunds describes the interior in glowing terms: "genuine wood and aluminum trim complements the rich leather seating surfaces," though "the highly polished wood can reflect glare annoyingly at times."
ConsumerGuide says that "cabin decor blends high-grade plastics and leather...other trim bits are genuine wood,” but the review is critical about the effect, adding that “the reddish color used to stain those pieces makes them look fake." Cars.com notes particular elements, including how the "perforated leather comes in a choice of three colors.” Car and Driver comments that "like other Lexuses, this one features a beautifully finished interior."