The S-8 seemed to be a nightmare but I discovered that when you drive calmly, you can even grab a gold !!
The toughest part of it the 180 degs turn when going down the first downhill... Just keep on second gear, keep punching the accelerator accelerator instead of squeezing hard. That applies for all of theturns. Keep a higher gear than the flasher and keep tapping the accelerator. I grabbed the gold after somethig like 7 tries... The Toyota GT-One racer is one heck of a handler if you do it right !!