Forty-nine years ago, American racing icon Mark Donohue died two days after walking away from a seemingly trivial crash in a Formula 1 car fielded by one of his best friends and closest colleagues ...

Known as "The Lightweight," this 1967 Camaro Z/28 helped Mark Donohue, Penske Racing ... an American motorsport icon, and one of the most fascinating race cars ever built. Photo: Mecum Auctions ...