I've owned both and there's no comparison apart from they've both got turbos.
A car cannot be judged as better than another by its one acomplishment or strengh whether the measurement is 0-400m, or top speed, but by the vehicle itself, and what it can accomplish as a whole, the aurora created, the engineering behind it, the feeling you get when you turn the ignition, or these days push the button.
they're both great cars by their merits, but still no comparison to each other, apples for apples.
Ultimately what governs one car to be better than the other is the price, because with it comes a level of refinement superior to its lessor. As is a GT-R's superiority to a F6, a 458 is superior to a GT-R, and a Bugatti superior to a 458