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We've heard this particular rumor before, but despite Nissan CEO Carlos Ghosn's denials that a four-door GT-R is in the works, AutoExpress cracks open the taps once more, citing its usual "sources in Japan." But there's a twist.

According to the British rumormongers, the Infiniti-badged GT-R will be stretched to accommodate the extra set of doors, making the wheelbase longer and giving it a more comfortable ride. However, the GT-R's twin-turbo 3.8-liter V6 won't be used. Instead, the FX50's 5.0-liter V8 will be mated to the same all-wheel-drive system and rear-mounted twin-clutch gearbox as its Nissan counterpart. Output is pegged at 420 hp with a 0-60 time of five seconds and a top speed of 170 mph.

While we're suitably skeptical about any mention of a four-door GT-R, this could be the long-rumored replacement for Infiniti's Q, taking the fight to the BMW M5 and Mercedes-Benz E63.

[Source: AutoExpress]