The full explanation of what happened is at the http://www.specmiata.com discussion board. In a nutshell, Car 1 missed the downshift from 4th to 3rd (ended up in neutral), the rear-end stepped out so he counter-steered. Car 2 was trying to pass inside. When they hit, instead of hitting Car 1's fender, Car 2 hit Car 1's tire (he's counter-steering, remember) and is launched over the hood.
All I can say it, "Wow!"
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Mike Spencer
NC Region
ITA/7 RX-7 (finally)
1990 RX-7 Convertible (street car)