DwingDwang.com

They say this took 606 takes and is a combined result of 2 (it looks seamless).
No computer graphics. All real as it happened.
Two (2) of six (6) hand built preproduction models used. One just for parts.
And, yes, tires (tyres) can really roll uphill if you add weights to them and balance them just so.
It’s pretty amazing what they have managed to accomplish !