April 2, 2016, 1:30 PM
Volvo has introduced the latest and quickest Polestars —the Polestar S60 sedan and V60 wagon — sharing the same base chassis and engine of the new Polestar TC1 FiA World Touring Car Championship race car fielded by Polestar Cyan Racing.
“While used in vastly different ways, these cars share more than just technology,” said Thed Björk, Polestar Cyan Racing race and development driver. “The core philosophy is the same, developed by people with the same passion. It is about creating performance that can be used in all situations, no matter if it’s about winning a championship or being able to enjoy a safe, functional and fun-to-drive car all year.”
Powered by the 2.0-litre twin charged (supercharged AND turbocharged) Drive E 4-cylinder engine producing 367 hp and 347 lb-ft of torque, the new cars make 100 km/h in about five seconds and can reach a (limited) top speed of 250 km/h.
“These cars are properly quick,” said Niels Möller, Chief Operating Officer, Polestar. “But they are more than that. They combine Polestar’s 20 years racing pedigree with Volvo’s inherent pragmatism and engineering heritage. These are very quick cars that you can use every day of the year.”
Changes from the original S60 and V60 T6 engine include a larger air intake to take advantage of the addition of a supercharger to negate turbo lag, a larger turbo, a new conrod for each piston, new camshafts, and a higher capacity fuel pump. To prevent spinning away the added power, the cars use a BorgWarner 4-wheel drive system fed by a new 8-speed Geartronic automatic with steering wheel paddle shifters.
The quickness is enhanced through reductions in weight, amounting to 20-kg lighter vehicles overall despite a 24 kg reduction over the front axle as engineers strived to optimize weight distribution. The lower weight/increased power combination also means improved fuel efficiency, with fuel economy improved to 7.8 L/100km and CO2 emissions reduced to 179 grams per km.
“All changes made to the car are about improving drivability and efficiency,” said Henrik Fries, Vice President R&D, Polestar. “The base of the new engine carries motorsport technology with solutions like the combination of turbo and supercharger, lightweight materials and more. This works hand-in-hand with our core philosophy and has enabled us to evolve the Volvo S60 and V60 Polestar.”
Other new features on the cars include new 20-inch lightweight wheels, Polestar branded new slotted 371-mm brake discs, and race calibrated electro-assisted power steering.
And, more people will be able to enjoy the quick cars, with Volvo announcing it would expand delivery to 47 markets (from just 13) and doubling plant output from 750 to 1,500.
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