So we just got the dune buggy home and started taking a look at it. Let the design ideas flow!
So we weighed the car (rather crudely) by putting a bathroom scale under each tire.
Apparently this thing weighs ~880lbs! Holy cow.
We also started a few rough calculations based on the pre-existing gear ratios in the car.
Using the high speed gear configuration, it looks like we'll be able to hit about 111km/h ... we're going to need some seat belts! We also plan on having a low-speed, super high-torque mode, where the top speed is only 60km/h ... but you could drive up a wall with it.