Do you mean number of the Cobra as in 390 hp? or in weight? Or in 1/4 mile? Or in price? Id have to agree with weight and price. As for the Mach 1 i dont see a 5.4 in it;s future but the Bullit is supposed to be a 4V 4.6 400hp N/A - i like the idea of naturally aspirated power
It's likely that wil be the design, but ford hasn't released its specs or anything. If you want a specialty Stang but not the 4.6 the 09' Boss 302 will have a 4V Hurricane 5.0L w/ about 435hp