if this is anything like the last decade, Toyota will bring out their big gun and same goes with Honda, but afterward, Toyota will just fizz out. It will then be a war between Honda and Nissan. But in the end, Nissan will bring out its final nuke, killing all opposition and become the king.
Thats just my fan boy side talking. This time around, I think Honda will be a lot more formidable without the power restriction and their AWD sustem. I see the Lexus languishing behind while the ZR1 probably won't get anywhere from now until the finish line. Porsche will introduce maybe two more models to attack the speed time. One the mass production version which may or maynot beat the 7:29 and one stripped out to the extreme, boosted up and stiffened version just to have the bragging rights.