the vss will effect performance its not uncommon for the car to stall or cut out completely when this sensor goes you have to remember all the sensors etc that connect to the dash display if anyone of those goes faulty it will effect other sensors the speed sensor and fueling etc are all interlinked
if you dont want hassle i wouldnt be looking at an st dont get me wrong great cars but they suffer from the same issues as all other focis including timing belts snapping early etc
Oh ok will have to have a think then!
One more question, i noticed yesterday when i put on my front fogs the light on the dash flickered. Should this be a concern for me?
Im driving it at them minute till i get it up to scratch for the missus. oh it also has no heating - which im hoping is just the heater motor.