Styling will remain unaltered, with the most important upgrade being in a refined suspension to give the exec express a more compliant ride.
To that end, it is fitting advanced new low friction shockabsorbers from the German Sachs company which give a softer ride at low speeds, but work in tandem with increased spring rates front and rear to keep the car cookie-flat through high speed corners.
The new suspension will also be fitted to the 2012 Lexus GS, due for local release in the first half of next year. The IS-F also gets a set of new-design BBS alloys, the front ones up from 8 to 8.5 inches in width, with the rears unchanged at 9-inches.
Other changes are to the interior, where red-and-black leather trim replaces the orange-and-black, and there are some new exterior colours. It's the third upgrade since IS-F was launched in 2008.
In 2009 the original electronic differential was replaced with a Torsen mechanical unit and last year the car got a revised suspension system, new dash and daytime running lights. The high performer has been in steady demand in Australia, with its monthly quota of about 12 always sold out.
"Some IS-F owners are on their second or third one," Lexus Australia's Peter Evans says. "There's a lot of loyalty to the brand." Pricing for the new one will still be $126,800.