I have an ST170 and i have not had a problem with it at all, never had a sensor go wrong, most reliable car i have ever owned, just the clutch went. Lovely to drive, very refined but as standard they will get shown up by allot of cars. I had to throw around 2K at the engine of my ST170 to get it to where it is today and its still not broken 200bhp and it never will not without forced induction. Mine is lots of fun though, save up get the RS.