A typical issue when learning long circuits like the Nordschleife is that you crash very often before arriving at the end and as a result you always know much better the initial part. A possible solution is to set a spawnpoint further ahead, but it is a pity that you have to start from a stop when you would normally be travelling at a certain speed at that given point in the track. My suggestion would be to create a "moving" spawnpoint by hitting a button while you are playing, so that you can restart again from the same point and at the same speed. In your own interest, you should create such a spawnpoint in a moment in which your inputs are easily reproductible (say, full throttle and a centered steering wheel).