Part of me thinks yes as they look different but the other part of me thinks no - I think the escos wheels would stick out a fair bit though because of the offset Duncan (the FRS registrar on the RSOC) trial fitted a set of escos offset superleggeras on his FRS one weekend for a laugh and they stuck out loads and that was on the FRS wider arches - will be worse on the st170 arches i'd imagine

Mind you, you could probably get away with the escos rims on the track couldnt you