Hi Jonathan
Welcome to UKGPL, your registration has been processed, you are in. The rules regarding tokens are detailed on the
championship page. They are pretty clear but if you have any queries just ask. You will be able to drive any car in the next round at Brands (10 tokens for start of the season plus 10 tokens for the race start equals 20) but you'd probably be wise to take a slow car and save some tokens for the later rounds when a fast car will be a big advantage. Picking the right car for the right race all adds to the fun.
Regards
Phil