Sorry Jan but that is why I said you must experiment:
Using the Mini as an example, look at the line :
Eyepoint=(0.333, 0.960, 0.310) // Driver eyepoint (cockpit view only) ( LEFT/RIGHT, UP/DOWN, FORWARD/BACK
Leave the first number alone as that is the position of driver seat left to right. (So if you change it the 'seat' will move left or right, which you don't want).
First you need to make a change to the 0.960, save it and start the game, go to track and see which way it moves your view, up or down. Once you have that worked out, you can adjust the height to exactly where you want it. Then do the same for front to back.
Easy to do, but will take some time and patience as you have to edit, save and reload the game each time until you get it where you want it.