Ok ..well here a the weights by a Certified Truck /Car shipping company S197..3,476 and the Mach 3,469 .No it doesn't if you were to ACTUALLY check, you would see that a Mach 1 and a S197 GT are quite close in weight with the S197 being the LIGHTER car...
I have posted in the past quite a few web links that had the Curb Weights for 03 - 04 Mach 1's and S197 GT listed...