I have not, but looks like this guy has [1]. But I would also not rely on anecdotes, and would want them to test it out comprehensively before allowing it on road. If I am commanding a 1000 ton metal hurling with a speed of 110 kmph, its better safe than sorry.

[1] - https://news.ycombinator.com/item?id=6640895

Considering the legal weight limit (not including special permits) for commercial vehicles, e.g. 18-wheelers, on most US roads is 80,000 lb. (36.29 metric tons), it'd be quite surprising to see anyone in a 1000 ton (metric or short) vehicle, let alone traveling at a rate of 110 km/h.

That 1000 ton was a very arbitrary spewed metric. The smallest of four wheelers is capable of much damage, which is what I was getting at.