>>>The big point of all the tape, foam..etc. is to disguise the overall shape of the car. In that photo above, you can clearly see the real lines of the car. <<<
Z, in this case they were just trying to make it look like the rumored Blue Devil - basically a C6 Corvette with a big motor. The shape is the same, but they added the hood scoop and flares to make it look like this was some sort of evolution model. Apparently, it worked!