AES
Established Member
Why don't they just buy another set of wheels and have them swapped?
That's exactly the general practice in Switzerland. Apart from anything else, if buying new, or "decent" SH (through a dealer, rather than privately) the supply of an extra set of wheels (steel), plus winter tyres (fitted & balanced), plus the cost of changing every sic months, plus storage, all add up to yet another of the many bargaining points when negotiating the price.