hiya, the most popular buggy for under £200 is the hobao hyper 7 tq, nearly all british modelshop have parts for it, and they are selling strong which is why they have lowered the price, i have heard of the rex buggies and most say its good but parts are hard to get, i have the hong nor ultra lx-1 as my friends got the hyper 7 and hotbodies lighting and i wanted something different so i chose the lx-1, so far i am impressed with this buggy and happy with it.

if i were you i would go for the hong nor X1 CR rtr as i know its a strong car or hyper 8 rtr with .21 engine (not macstar .28), both of them are slightly over your bugdet but you don't really have to upgrade much

hope that helps