Porsche has made tweaks to its most powerful 911 race car. The capacity of the GT3 RSR’s boxer engine has risen from 3.8- to 4 litres, while an FIA-enforced reduction in the size of air restrictors has seen power and torque changed to 444bhp (at 7800rpm) and 317lb ft (7250rpm).
Maximum shove is available from lower down the rev range while the 911’s rev limited now cuts in at a heady 9000rpm. Other key changes come in the shape of a re-designed nose with larger air outlets while there’s new radiator air-ducting that can accommodate air conditioning, should you wish to add it to your RSR.
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The car’s underbody aerodynamics have been improved while the new rear wing has a wider adjustment range to allow tweaks to the car’s dynamic behaviour. The RSR is also optimised for quick servicing during races, with the oil-filler moved and a new air-jack system installed while there’s an on-board control device controlling an abundance of the car’s functions.
The GT3 RSR, despite its name, competes in the GT2 class primarily in international long distance races. Last season it was victorious in the American Le Mans series and on home turf in the Nurburgring 24 Hours. Around 20 have been built so far and are being delivered to customer race teams now for the princely sum of 380,000 euros plus VAT – the equivalent of £410,000 at current rates.