Sorry bud, there were no mustangs in 55, and no cobras till 68
The 2010 Ford Shelby GT 500 has ( 540 horsepower )
the 67 mustang r code is said to push 450 horsepower for insurance reasons but actual dyno testing had dyno'd 650+ horsepower out of the 427
The 2010 model has 540 horsepower
Original Shelby Cobra can go for in between 10 to 15 million dollars. Remakes are around the $30,000 range.
320 Horsepower
The 1967 Shelby GT500 had 355 horsepower 428 big-block
( 500 horsepower ) for the 2008 Mustang Shelby GT 500
The 2003 Ford Cobra has 390 horsepower 4.6L DOHC V-8
The 1995 Ford Cobra has 240 horsepower 5.0L V-8
305 horsepower
1997 cobra's have 305 horsepower. have a book on every mustang and cobra's ever built and specs.
For new about 50 thousand