#2 Nigel Mansell vs Ayrton Senna (1987 Belgian Grand Prix)
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Nigel Mansell and Ayrton Senna typified what racing truly was in the 1980s and early 90s. The duo went at it several times and ensured that fans were entertained the whole time, with 1987 being no different.
The Belgian Grand Prix that year was interesting to say the least, with Mansell taking pole and a second start seeing the Brit make a beeline for top spot. He found himself chasing a familiar foe however, with Senna taking the lead.
Mansell looked quicker and tried overtaking the Brazilian almost immediately, but with Senna sticking to his guns, the two made contact. It caused a double retirement, and a livid Mansell proceeded to chase down Senna in the pit garage later.
The British driver went on to hurl insults and threatened his counterpart, and even lit him up with a few punches off-camera. Ouch indeed.