The Ford Mustang is a pony car that was introduced at the New York World's Fair in 1964. The car was an instant sensation. The Mustang entered its fourth generation in 1994. Codenamed SN-95, it was a revision of the Fox platform. Ford spent over $700 million to improve the platform over the previous version, which included a new front suspension with MacPherson struts, longer lower control arms, new spindles, anti-roll bars, a four-bar link solid axle, and other enhancements to handling as well as comfort. It was the first major redesign the Mustang had seen in 15 years. It was available as a coupe or a convertible. Engine offerings were either the 3.8L Essex V6 or the 4.9L Windsor V8, a direct descendant of the 302 cu.in. Windsor that had first appeared in the Mustang in 1968. Transmission offerings were two 5-speed manuals (the Borg-Warner T5 and the Borg Warner World Class T5) and the 4-speed AODE automatic. A Cobra R model with the 5.8L Windsor V8 and the Tremec TR-3550 5-speed manual transmission was made in 1995. The 4.6L Modular V8 replaced the 4.9 Windsor in 1996. 1996 also brought along a new taillight design, new transmissions to replace the old ones (the 4-speed 4R70W automatic and the 5-speed T45 manual), and a higher-performance Cobra model. Seen at a Harkin's in Prescott Valley, AZ.