Woman allegedly shoots Uber driver, thinking he kidnapped her and was taking her to Mexico
https://www.cbsnews.com/news/uber-driver-shot-kidnapping-phoebe-copas-el-paso-texas-daniel-piedra-garcia/
A Kentucky woman is accused of fatally shooting her Uber driver in West Texas after mistakenly believing she was being kidnapped and taken to Mexico.
A U-Haul doesn't need to achieve those speeds in order to kill multiple people in a single surge.
As for what's on what level, it all depends on the context. If we're talking about one-on-one violence, then a gun is no more deadly than a knife assuming that there isn't a significant difference between the two people involved.
If we're talking one person killing several, then a gun has an advantage at range while a knife has an advantage at close distances.
My original points still hold - if one person is trying to kill another, then that's the problem, not the tool that's used. Putting the blame on the tool is an ultimately fruitless endeavor - people can and will always be able to find another tool. The fact that people are getting murderous in the first place is what the real problem is.
The US cohabitated with guns for many years without mass shootings being nearly the epidemic that it currently is. There was no significant change in guns themselves that led to that change in mass shootings. But you know what did change? The internet came along.
The internet makes it really easy for someone with dark thoughts to find an echo chamber with a hundred contemptible numbnuts egging them on to do whatever they were contemplating doing.
Addressing that will be far more effective then trying to ban any particular tool. Take away guns? Then people will drive vehicles into crowds. Take away cars? Then people will make bombs. Take away explosives? Then people will use poison. Take away poisons? Then people will learn how to make bioweapons in their garage.
It's not about the tool. It's about thinking it's okay to murder someone just because you don't like them.