http://www.musclecaroftheweek.com - There were many advances in Shelby performance cars for 1968, and this 1968 Shelby GT500KR convertible demonstrates them nicely! The big news was the new for '68 428 Cobra Jet engine, which was rated at 335 HP and 440 foot pounds of torque in this car, but was arguably closer to the 400 range. This car also boasts the rare 4-speed transmission and convertible top, and it is also wearing a Highland Green paint scheme with a Saddle interior. The car is quite stretch from the stripped-down but racier GT350s from just a couple years earlier, but is still every bit as admired today! From the Brothers Collection.