"powerful" drivetrain

[Ether]

I've seen a number of posts commenting on 2337's "powerful" drivetrain. Assuming for the moment that "powerful" in this context is intended to mean "forceful", this raises some questions.

My understanding is that 2337 has a 4-CIM 8x4"-wheel drivetrain. So what makes it exceptional? Assuming it's geared low enough to take full advantage of the wheel traction (i.e traction limited), that leaves only the traction (wheel-to-carpet friction interaction) as the explanation.

- are the wheel treads made of some sort of exceptionally high friction material?

- is the tread pattern on the wheels unique and able to provide superior gripping traction on the carpet?

- is the center of mass is positioned to somehow make optimum use of the available traction?