The New McLaren 620R Is a 611-HP, $300,000 GT4 Racer for the Streets

The lucky few who do snag one of these will enjoy a 3.8-liter twin-turbo V8 with an ECU and turbos now freed from racing regulations and calibrated to make 611 horsepower and 457 pound-feet of torque. That's 19 hp more and the same amount of torque as the already-hardcore 600LT, making it the most powerful car in McLaren's Sports Series lineup. It'll hit 60 mph in 2.8 seconds, cover the quarter-mile in 10.4, and reach a top speed of 200 miles per hour.

McLaren's new 620R retains the GT4 car's two-way manually adjustable coilover dampers that are 13 pounds lighter than the ones found on the regular 570S as well as the racer's adjustable carbon fiber wing, albeit raised 12.5 inches and fitted with a street-compliant third brake light. The big rear spoiler creates up to 408 pounds of downforce depending on the angle at which it's set. The 620R's front bumper, splitter, and hood have also been optimized for airflow and, as a whole, are good for 143 pounds of invisible grip. As for road-holding equipment you can see, the McLaren 620R comes with Pirelli P Zero Trofeo R tires standard but can be optioned with full-on racing slicks for track use.

In case you weren't sold already, North American buyers can configure their cars with a carbon roof and McLaren's Track Telemetry system including three onboard cameras—get this—completely free of charge. 

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