Goodwood is just after you leave the UK, There is a cool GP museum at Donnington Park (castle donnington on a map). I would check and see if a BRC round is running or perhaps a F3 race. Donnington Park is very cool. Mr. Felstead is a great guide especially if you are lost and your only answer is "There is nothing around except a lot of sheep". In London the war museum is cool and one that not everyone goes to and the standard stuff British museum, Tower ect.