Ford Mustang Mach 3 Concept
The Mustang Mach 3 Concept car was unveiled in 1993 at the Detroit International Auto Show. This concept was never produced but offered consumers a sneak peak into the 1994 production model, code named SN-95. The concept and the 1994 Mustang didn't look alike as far as the design, but it hinted at Ford's new flagship. The concept had a 4.6L V8 under the hood with an output of 450 hp.
Source: Wikipedia, 2012