Porsche had now made available a new 2.4-litre engine, alongside the current 2.25 and 2.2-litre versions. It developed 245 bhp that now got the car up to about 255 kp/h (160 mph) on the Mulsanne Straight.< Eight of these uprated Porsches were present, including ones for race-winner turned team manager Masten Gregory and the German Kremer Racing team. Kremer himself rejoined Nic Koob in another 2.4, along with Günther Huber in what was the first example of a triple-driver combination. In a reduced under-2 litre class, the Écurie Léopard tried taking on the Porsches with a 1.6-litre Alpine A110.