A kind of Bonhams. But then in French. The Arcturial auction house, www.artcurial.com, does all kinds of things. But they regularly have the best auctions in the field of 'automotive and automobilia'.
So don't think about bargains.
But if you have the mind, you can bid online. The Ferrari 166 MM Barchetta Oblin is estimated at 3.000.000, - euros
The auction is on 7-8 February