RC:
I described the differences and no, they do not perform basically the same. The differences are substantial and please note that the Evo has the more sophisticated AWD/TC system and rear wheel steering. Still, the Performance is faster on the track (same tires) and even faster in straight line performance. 
The Huracan Evo did the Sachsenring in 1:30,94 (AutoBILD SportsCars).
Here are the values for the Performante (also AutoBILD SportsCars) and other cars.
Same tires, Trofeo R (L).
Same day, same driver, same conditions and with the same tyres and let's try to redo the test...you would be surprise. Lambo advertise them at same power same 0-100 same 0-200 so they basically accelerate the same.
Comparing performance on a different day with different driver is not realistic.
--
GT Lover, Porsche fan
991.2 GT3 manual
Cayenne GTS 2014
