Anyone can owe a GT350 or you can owe a piece of HISTORY 2015 is the 50th Anniversary of GT350's, only 137 2015's were manufactured. Mustang GT’s Coyote V-8, the GT350 received a bespoke 5.2-liter mill with a Ferrari-esque flat-plane crank. Dubbed "Voodoo" the engine received the highest horsepower rating—526— building naturally-aspirated V-8s. Along with all of those ponies came a stratospheric 8250 redline. Extremely limited run of 100 GT350s—50 with the Track Pack and 50 with the Tech Pack. Ford also minted 37 examples of the GT350R for 2015. The data pegs the limited-run 2015 as the most valuable year for the modern GT350.