Lexus GS-F said to be Still Under Development, Could get LFA's V10 Engine

Given that the latest Lexus GS has been in the market for a while, most of us have abandoned the idea of an F-badged variant of the current model that would compete head on with the Audi RS6, BMW M5, Cadillac CTS-V and Merc's E63 AMG. But even though...