Well having got caught for 96 in a 30 I can tell you they don't like it.
I very narrowly scraped past getting a dangerous driving charge.
Ended up with 12 month ban.
I suggest the OP's mate get a barrister
Cheltenham has a dual lane one way circuit and is (or was, I think it's very calm to what it used to be like in the 90's) and every young un, including myself used to race round town

How no one got seriously injured I'll never know. Plenty of walls got knocked down I can tell you that.
I even witnessed one in my rear view as he tried and failed to go the same speed as me round the bend