A good RST will seriously upset some powerful cars. Mine made 248bhp and I have destroyed several imprezza's with it as well as giving a Porsche Carrera 4 a run for his money.

I've had no cause to complain about the reliability as it's been very good (*thats fooked it though *). The older M3's are well within the reach of a good RST the newer ones are a bit more special. Problem with Imprezza's and M3's however is they are like clits, every cnut has one

TBH I'd go for a Cossie. I wish I had now but I've spent and invested too much in my RST to go back.