Likely we can't call it a LEGO Technic supercar, because it doesn't have many of the features we would expect to be on such a car, like suspension, gearbox and even a piston engine on its first version.
But it is a 1:10 scale RC car, so the normal HoG for hand steering was replaced with a motorized return-to-center steering and the V8 piston engine gave its place to a couple of XL-motors and PF battery boxes (which look like a huge motor block while seen from the top).
Above all the aesthetics was exceptionally crafted all around! And there are also 6 pair of PF LED lights for the front and rear lights which make it quite distinctive. Specially for the headlights which are very characteristic on 458 Italia.
The work made with the panels and some SYSTEM elements, is quite impressive at some points and the opening doors are very well integrated. As far as I can see the seats and dashboard have also superior design. Can't figure out if it is possible to open the front hood, though!
The new/old panels mix style might not be the official way to build, however it produces some nice results here.
Brunojj1 (the author) mentions the IR control doesn't function very well outdoors, but at least in the video it seems to perform pretty well.
Because some have claimed for an hand steering and V8 piston engine version, Bruno also made it together with some other modifications in the body work.
I'd say the aesthetics was improved even further. I've specially appreciated the modifications done at the roof level and immediately behind the doors.
Additional photos from both versions, can be seen at Bruno's Brickshelf account. Respectively here and here.