The car in the video was using a 5 cell "hump" style battery pack which has more voltage. We recommend that if you want to have your cars steering quicker like you see in the video to go ahead and purchase an aftermarket pack like this.

Here is a link to a few different places that have the packs: [link]http://www.teamorion.com/products/batteries.asp#Receiver%20Packs[/link] or you can to to this link: [link]http://www.ofna.com/elec-batt.html[/link]

There are other companies that manufacture "Hump" style batteries but these are the two that I know of off hand.

Have fun!