Yup, as lllyf points out - its not a Works 93 (although there appears to be some parts for that model in the stash of spares) but a YZ-10 95WCS 'Pavidis' - a very nice car indeed... like any old vintage collectable R/C, its worth what anyone is willing to pay for it - advertising on ebay under an easy-to-find heading is usually the best place to realise the maximum price for such a buggy, but you may already have an offer that you feel is 'fair' which of course does away with all the hassle (& fees) of trading on Ebay
P.S; Are those pink wheels (in your 1st photo) with the ribbed face 'rears'.... i've been looking for a pair to match up with the fronts I already have!