Trivia: the very last Group B rally was Olympus in the USA
This is some footage I posted of John Buffum's Grp B Sport quattro at the 1985 Press on Regardless Rally in Michigan. I love this clip. You can hear that 5-cylinder turbo snorting and popping 1/2 mile away. It's the friggin' Tasmanian Devil! I showed this to Buffum several years ago and he got an ear-to-ear grin