Longstanding Volvo partner Polestar teased the car on Facebook, and the concept made its debut this weekend in Gothenburg, Sweden. Almost every part of the regular Volvo S60 sedan has been upgraded, beginning with the engine. The turbocharged 3.0-liter inline-six engine benefits from larger turbochargers, a new intake manifold, stronger connecting rods, and a new exhaust. Peak outputs are now 508 hp and 424 lb-ft of torque. The S60 Polestar uses a specially upgraded six-speed manual transmission, and a reinforced Haldex all-wheel-drive system.
Polestar says the tweaked S60 will rocket to 62 mph in 3.9 seconds — and on to a top speed of 186 mph. The hottest factory Volvo S60, the 2012 R-Design model, produces 325 hp and 354 lb-ft. Volvo says it will reach 60 mph in 5.5 seconds and manage a comparatively tame 130 mph.
The car shown off in Sweden was a one-off commissioned by a Polestar customer. If there’s sufficient market interest, the company might consider building more copies on a limited basis. Sadly, that means this hotted-up model probably won’t be coming to showrooms in the U.S.