Balancing issues here. I have moved leagues after making it to Elite where a 4 car championship would have taken place. I am Level 9 and on moving have gone into Elite in my new league (most cars are Greatly over my Level) and my car has ended up losing virtually all its points (down to 5 on acceleration and average about 10 points per area now).
An idea would be to enable people to move from their league at the end of a racing season without car penalty. Another would be to not have the car penalty at all in the game. A final one would be to place people in their new league in line with their skill level.