Because the original road car owed much of its design to racing, converting the F1 into the GTR was not too complex: cooling ducts, a large rear wing, carbon brake discs and other racing components were added, while the interior was stripped of all its luxury appointments including the air conditioning!
The central seating position for the driver was retained as were the upward opening doors. Over the next couple of years, the car was further modified to remain competitive, racing in the BPR Global GT series, the FIA GT Championship, the All Japan Grand Touring Championship and of course the Le Mans 24 Hours.