I was at Bonneville in September 2018 for the World of Speed event. We saw the Turbinator go by at the 3 mile mark at nearly 400 mph on its way to a 503 mph exit speed. We also saw a world record pedal bicycle run at 90+ mph set by a female cyclist. There are so many super cool machines that run at any of the speed trials at Bonneville. If you ever get a chance to go, I highly recommend it.