Hi,
I'm looking to buy the cleanest williams I can to have as a concours project. I have found a williams 3 which has 13000miles on from new with the present owner having had the car for the last 15 years. I've spoken to him and he seems like a nice guy, and he obviously wants the best price for his rare car, However having trailed throughout the internet I can't find anything to use as a reference as to how much his car is worth.

So, in short that's my question. to be fair to the current owner I think this car has to be at the top end of what these cars are worth? it's just what is the top end for these cars in this condition?

Any advice will be greatly appreciated as i'm hoping to phone him today and hopefully secure a deal.

Thanks in advance,

Anthony.