Lexus' attempt at a serious sports sedan has done its best to win hearts and minds, but that doesn't mean the IS F will soldier on unchanged through the economic Armageddon. Following up on a story that surfaced this time last year, Japan's Best Car magazine is reporting that although the Lexus IS F Evolution was initially delayed, Toyota is forging ahead with its hotter IS, and two test mules are currently undergoing testing across the Pacific.

Originally, the IS F Evolution was rumored to be packing a tweaked version of the 5.0-liter V8 putting out approximately 435 hp, however, Lexus has decided to keep the engine the same and instead focus on weight reduction, handling mods and brake upgrades.

The front and rear bumpers, along with the front fenders, will supposedly be swapped out with carbon fiber pieces, while wider wheels coated in 245/35R19 rubber in front and 275/30R19 in the rear will cover new carbon ceramic brakes. A few new exterior hues will be available, while the interior will benefit from even more carbon fiber and a set of matching Recaro bucket seats.

All told, Best Car estimates a weight reduction of around 300 pounds and a price upwards of $180,000, making the Lexus IS F Evolution a JDM-only affair.

[Source: Best Car via 7Tune]