Hi mate, yeah I was wanting it as a fun car too but just found driving it a bit rubbish and not very satisfying! The model shop said it would take a 15t motor so that's what I put in.
The suspension arm is metal but it's 'cast' metal which is very soft. I wasn't even pushing it that hard either before it just...well...snapped off!
Although the waterproof electrics housing is a good touch I must admit.
I still want to get rid of it though!!!