In the week leading up to the German Grand Prix a number of teams tested at the Hockenheim circuit. During testing Ayrton Senna had a very lucky escape when he had a rear tyre failure at over 300 km/h (186 mph) on the long straight leading to the Bremsschikane. The rear corner of his Lotus 99T was destroyed and parts were reported to be hard to find as most ended up flying off into the forest. As a result of the crash Goodyear took the precaution of immediately flying in new compound tyres from ...
The tyre failure was determined to be the result of Senna picking up a puncture late on his previous lap. However the Lotus' active suspension system compensated for that and kept the car at its correct ride height, masking the problem from Senna. This caused many to question the system as the general belief was that with a passively suspended car Senna would have known he had a puncture and would not have continued to drive at high speed.