A couple of separate enhancement requests:
1. a slider next to the Power On/Off button that allows setting everything to 25%, 50% etc of maximum power, which would affect all drivers and all cars
2. it's useful to be able to set a lower power of a driver i.e. for children, but it would also be useful to set the power for cars too, so that cars that are too fast can be permanently set to run more slowly
Thanks,
James