Results are about right. ZR1 weighs more and has more drag. ...
The ZR1 also has 108 more HP and more torque than the GT. A driver doesn't get to make excuses with that kind of power advantage.
Waiting for how bad the 720s will beat both.
He already has videos posted of the 720S destroying that ZR1. It's going to be ugly for the GT, too. Just not as ugly as for the ZR1.