Your WRX makes 265hp from a 4 cylinder engine, that's as much power as Porsche was getting out of their 6 cylinder 2.7 engines at the time, in cars that cost far more...

The WRX is a really cheap family car with a small 4 cylinder engine tuned to the absolute performance limit with TONS of turbo boost, and the corresponding massive amounts of heat and stress that includes. I would expect it to be incredibly unreliable! Just a little unreliable is impressive. I'm always impressed about the interesting cars Subaru is willing to sell to the public (XT anyone?).