Yes, and so far it's much easier to drive a van into a crowd of people. Nobody has tried to mandate tech in cars that detects and prevents such malicious behavior.
Vehicles are registered and licensed to tie them to specific owners. You are required to provide a identification/drivers license when renting a vehicle. The largest, most dangerous vehicles like semi-trucks have additional restrictions on licensing and access. There is a pretty robust system in place to reduce unattributable crimes using vehicles.
Can you drive a van into a group of people without even being physically present though ?
Yes. https://www.psu.edu/news/campus-life/story/hackers-who-remot...
Even without vulnerabilities like that, something like https://comma.ai/openpilot could very likely be used in the same way ArduPilot was used in the recent Ukrainian drone attacks.
easier than a drone, technically. using the same tools and techniques too.
a van is just a bigger, more inherently stable drone.
> Can you drive a van into a group of people without even being physically present though ?
It's probably totally doable by now. We literally have self-driving cars.