Thanks for the program.
Preferences are somewhat confusing however...
I've created a new vehicle, set the Engine Torque Curve limit to 5800 rpm, set the Top Gear Rev Point to Fixed (Engine Limit), went to Acceleration tab, clicked "Watch in Real-time", and noticed that the engine merrily revs up to 6500 rpm in the first gear.
Only then did I notice I also have to use the rev limiter option, seems somewhat illogical.