price depends on whay year it is.
mines done 94k and still runs perfect, my bro's has done 112k and still runs perfect.
ST220 uses timing chains and are good for 200k apparently.
common faults, rear wishbone bushes, plastic breather pipes splitting (on higher milage cars), rear bumper sagging (on newer cars), rear callipers, thats all i can think of.
the early 5-speed models are quicker than the later 6-speed models.