sentences:  This car was built and raced for the first half of the 1983 season.Postlethwaite designed an oversized but effective rear wing that recovered around 50% of the lost downforce, whilst further compensation came from the engineers who boosted the power of the engine even further, to around in qualifying and over 650 bhp for racing, generally regarded as the best power figures produced in 1983.The 126C3 was first introduced for the British Grand Prix at Silverstone in 1983, with Patrick Tambay, while Arnoux would get to drive a 126C3 at the subsequent race in Germany at Hockenheim, which he ended up winning.