Thirty-five years ago the European Formula 2 Championship was struck twice by tragedy. In April Austrian Markus Hottinger was killed at Hockenheim, and just three months later German Hans-Georg Burger lost his life following an accident at Zandvoort.
Given that they died just 13 weeks apart - and both in freak incidents that involved head and neck injuries - it's inevitable that the names of Hottinger and Burger are usually mentioned in tandem.
In fact the links are much stronger. Close friends, they both emerged from the hurly-burly of Renault 5 racing, attracted support from BMW, and caught the eye by taking on established Formula 1 stars in the M1 Procar series.