I have a gen 2 viper that was purpose built to 1500 whp its just amazing in straight line performance at 7lbs it makes 1000rwhp lowest setting and I love taking it out.
But the FGT is just different it rides better looks better gets more attention and my wife will actually go out for dinner it. Parking it is a task, just cant have any one to close to you.
But overall fgt is a better car but nothing replaces the power the viper motors make.
For me as much as I'm a big car buff and that it would be great to have over 1,000 hp car, I'm afraid that I would probably never get to enjoy it enough to make that type of investment. I would be just as happy with a 10 sec street car since that is the only time I do any driving is on the street.