Chet Floyd’s 1961 Aston Martin DB4. Photo: David Gooley1960 Alfa Romeo Sprint Zagato of Roger Groves. Photo: David Gooley1936 Duesenberg Model SJN Convertible Coupe, from the Nethercutt Collection. Photo: David GooleyThe St. Regis Resort golf course provides ample elbow room for the Dana Point Concours to spread the field out. Photo: David GooleyEngine detail of Mitch Talcove’s Munch Mammoth motorcycle. Photo: David Gooley