( I had previously posted that video in the Nissan LEAF thread here: http://www.teslamotorsclub.com/showthread.php/3093-Nissan-Leaf?p=183775&viewfull=1#post183775 )
To be fair this is not a off the shelf Nissan Leaf where the Tesla's were. The Nismo I believe is using the same drive train and battery pack of the Leaf but I'm sure they've done some modifications to pushing some serious AMPs out when they need to. The Tesla Roadster was designed on the conservative side being stock. In the clip that one Orange Tesla braked way to hard and early for that turn where the Nismo overtook him on the inside lane. It was like they put a professional race driver in the Nismo against regular street drivers on amateur day.
This is an obvious propaganda piece for Nissan. The Leaf was modified for racing (for example, the battery was relocated in the center to improve handling). The Tesla was stock.