The Gallardo is most certainly not a supercar, the lamborghini supercar is the Murcielago...360's, Gallardo's, etc are high end exotics, supercars are in a league of their own. A ZO6 is a great car but is definitely not a supercar. And no it is not relatively easy to make a car fo 220+ to prove my point the ENZO's top speed is 217. Name ten super cars that go over 220? Veyron, SSC, Koenigsegg, McLaren...
Use this as a definition for supercars:
http://en.wikipedia.org/wiki/Supercars, cars are not supercars just because you think they're "super" or "great" there's a legitimate although somewhat (i use this term loosely) flexible criteria to DEFINE a supercar.
On a side note:
I do work for SSC just check out the feature article about the SSC in the Feb. issue of Road & Track, out of a lot of tests I can tell you that we did absolutely awesome.