You can search eBay for door poppers by searching: Door Popper or Shaved Door kit
You can also contact Mark for door poppers at :
or e-mail him at:
The doors are opened by a sort of gas shock or "popper" that is mounted between the door and the car because there are no handles on the door. When a button on a keychain is activated, the popper is triggered and the doors are opened as shown in the video.
This video talks about the shaved door/door popper