Well, in the time span that I have done (1979-2002) there are some notable differences:
* In 1982, Keke Rosberg would have been a runaway champion, securing the WDC before Las Vegas
* In 1987, Nelson Piquet would already be confirmed WDC at the time of Mansell's crash at Suzuka.
* In 1988, Alain Prost would beat Ayrton Senna by the deficit of 126-112, ironically clinching the WDC at Suzuka...
* In 1989, Alain Prost would have been 35 points ahead of Senna going into Suzuka, which means that there would have been no need for him to take Senna off t clinch the WDC
* In 1990, Ayrton Senna couldn't have clinched the WDC by crashing into Alain Prost at Suzuka, though he would drastically have improved his chances by doing so, as he was 8 points ahead of Prost at the time.
* In 1994, Damon Hill would have been WDC

* In 1997, Michael Schumacher would have clinched the championship before Jerez. We wouldn't even have knwn what we had missed

* In 1999, Eddie Irvine would have fulfilled Ferrari's dream of once again winning the WDC, 20 years after Jody Scheckters triumph
