Only 1,963 Porsche 911 S/Ts were ever built, with example #1919 being one of the rarest. Driving the rare model is a screaming 4.0-liter flat-six with 518 hp and a six-speed manual. Low-mileage examples are already fetching $400,

Porsche and RM Sotheby’s have announced they're joining forces on a special auction for a limited edition 911 S/T sports car, with all proceeds of the sale benefiting the American Red Cross and its efforts to help those affected by this year's devastating California wildfires.

Porsche also found success with the Cayenne and Macan because they were in third and fourth place, respectively. Not all of the models were so premium, the compact, comparatively