G20 Advice and Info

[TF240Cup]

Hi guys,

I'm currently looking at a G20 for next season and I'm after some advice.

What are the main things to look out for when buying one?

What are the pitfalls?

Any common problem areas or weak points?

Also does anyone have any info on this car? - http://www.pistonheads.com/sales/2251450.htm

Any help most appreciated.

Sean