On 6 June, vintage-car enthusiasts gathered at the renowned Chicago Vintage Motor Carriage showroom for a private viewing of 67 of world’s rarest automobiles from the Richard H Driehaus Collection. Curator Stephen Murphy discussed the collection’s capstones, including a 1933 Pierce-Arrow Silver Arrow – the evening’s showstopper. The Driehaus model, which was purchased at an RM Sotheby’s auction, is one of five ever made, only three of which are still in existence. The evening’s hosts Gord Duff, Global Head of Auctions, RM Sotheby’s, and Gary Metzner, Head of Sotheby’s Chicago, mingled with guests amid jazz tunes and cocktails, highlighting automotive gems including a one-of-a-kind 1954 Mercury XM-800 and a 1930 Cadillac Series 353 owned by the Rothschilds, which was driven on their vineyards in the south of France. Click ahead for more from the evening of incredible automobiles.