There's a chap here in Leicester that sells part worns, all guaranteed and tested. Said he's got a pair of michelins with 4mm tread on them (that came off a CLK), 60 quid the pair fitted and balanced.
That's not a good deal only 2 mm of wear left in them and you'll soon wear that off in a CLK, better option would be Nankang NS2 or Lassa Impetus 2 new tyres for little more than the cost of the pair of 2/3rd worn Michelins
Going back to the spare - make sure you have the spare wheel bolts which are shorter, the alloy wheel bolts won't tighten with the spare on. Best to find out now before they're needed.
That's not a good deal only 2 mm of wear left in them and you'll soon wear that off in a CLK, better option would be Nankang NS2 or Lassa Impetus 2 new tyres for little more than the cost of the pair of 2/3rd worn Michelins
Going back to the spare - make sure you have the spare wheel bolts which are shorter, the alloy wheel bolts won't tighten with the spare on. Best to find out now before they're needed.