As is the case with the IS200t mid-size sedan, NX200t medium SUV and the larger, all-new RX200t, the GS200t will form the basis for the model line, replacing the GS250 with its 2.5-litre petrol V6 engine.
The 2.0-litre four-cylinder turbo engine for the new 200t variant pumps out 180kW and 350Nm, with power sent to the rear wheels by way of an eight-speed automatic transmission. Fuel use should drop from the GS250's claimed usage of 9.3 litres per 100 kilometres.
The styling gets a few changes, too, with a new front-end design included a more sculpted front bumper with the eye-catching "spindle" grille. The GS also sees the adoption of bi-LED headlights, new-look tail-lights and a revamped rear bumper.
Further, there is a range of new exterior and interior colours, wheel designs and interior wood and aluminium trim selections.
There's plenty of new equipment, including a new media system (up to 12.3-inches in size) with revised touchpad interface, and updated standard safety gear including the Lexus Safety System +, which consists of a pre-collision braking system, lane-keeping assist, automated high beam, and radar cruise control.
The new GS range will comprise of the entry-level GS200t, GS300h, GS350 and GS450h, while there's also the high-performance GS F on the cards. It's more likely to be in 2016.
The GS range will arrive alongside the updated Lexus LX570, which was also unveiled at Pebble Beach.
Click the Photos tab above for more images of the 2016 Lexus GS200t.