GT12 or LMP 1/12 for beginner

[Stew73]

Hi all.
I'm thinking of visiting some local clubs as I am very interested in having a go at 1/12 circuit racing. GT12 seems increaslingly popular, but I'm also interested in LMP 1/12 which seems a faster, lighter, more expensive cousin?
Any views on what best to do? Would LMP be too much to handle? I haven't controlled an RC car since my long suffering and much loved Boomerang in the 80's.
Also, I see some GT12 kits being sold for £150 ish, but I thought there was a £100 limit? is that right or is that just a rule some clubs have? Apologies for the ignorance.
I'm not looking to beat the world, just some good natured but competitive club racing, and a bit of craic!

Cheers

stew73