Tt what to look out for petrol models

[johnny a4]

Hi guys just want to know is there a good post on here about the audi tt petrol models 18 t and 20 fsi models. I am thinking of one of these in the future has the a4tdi will be to big for what I need plus I will be doing less miles Amy more, so petrol is the way to go.
So is there a thread on here which can tell me the best petrol model and what to watch out for,thanks