just checked, and it's actually all mapped out in MS Autoroute.

looks like it will be easy. proper bo.'
just want it to tell you the name of the corner coming up, if it's left/right, and maybe a speed that you know is safe and any other warnings like corner tightens, camber changes etc.
of course you'll still have to look out for other traffic and stuff, but could be a useful thing to learn the circuit quicker. don't know about anyone else, but i can't read the signs for each corner on the side of the road, and if it's read out to you each lap it will all flow together better.