Thanks Andy, OK. So for now, what I've said is the case - I can change the cars on a per-race basis, but the max speed limit doesn't stay with the car forever .... hmm, real shame. My track will just have to collect dust or go in the loft boxed up for now, as I can't afford to keep buying cars every second or third race, as I forgot to set the max speed down or wasn't in a race when one of the kids pulled the controller. Seems like a pretty big oversight. That's a lot of lovely Arc Pro kit sat here, I'm unable to use just now.