hi mate
father-in-law as had a terios for nearly 10 years now and apart from two front wheel bearings its just had general servicing stuff ie front pads,exhausts etc .one of the rear wheel archs is starting to rot but i think thats down to not noticing some paint work damage earlier enough. points to not the earlier ones are only 1.3 so not flying machines and also the plastic wheel arches do collect water and rot from behind as do sport track,four tracks and suzukis etc
hope this helps