took the van out for a little run the other day and baring the fact that im scrubbing out on any lump in the road im not 100% confident in the laoding in my current smart car tyres... they're not new and where already on my old 4.5 flat4 fuchs so would be happy changing them, ive seen a lot mentioning other sizes but noting solid on 4.5's any idea's or a link to some more info would be great 
oh its narrowed 4.5 inches and slammed on the floor
oh its narrowed 4.5 inches and slammed on the floor