Robotizing an old Power Wheels toy

I recently acquired an old "power wheels" T-Rex kids ride on toy. So my choices now are:

1) use the drivetrain for a robot - I started a robot page but no progress to report yet

2) use the whole body and convert to a robot - could be a test-bed for self-driving vehicle

 10/29/13 - Hacksawed the rear off so I can toss the rest and clean up the porch area a little, I've got too much stuff laying around. I decided to use the drivetrain for a robot "pet" and will cut the base from a sheet of plexiglass I forgot I had tucked away behind the bookcase. I'm starting with a blog entry and will add the robot page when I get something put together.