The Lexus GS F is inching closer to production as our spies have managed to snap new pictures of the BMW M5 and Mercedes E63 AMG competitor.

Caught undergoing testing in Europe, the GS F has an aggressive front fascia with a prominent spindle grille and large air intakes. Additional changes are limited but the car has lightweight alloy wheels, a rear diffuser and a distinctive four-tailpipe exhaust system.

Power will be likely be provided by a 5.0-liter V8 engine. It produces 467 bhp (348 kW) and 389 lb-ft (526 Nm) of torque in the RC F but speculation has suggested the engine could be tuned to approximately 500 bhp (373 kW) and 400 lb-ft (541 Nm) of torque in the GS F. It will likely be connected to an eight-speed automatic transmission which could enable the car to accelerate from 0-60 mph in less than five seconds before hitting a top speed in excess of 170 mph (273 km/h).