Eh, "consented to" is rather weak when you are forced to hit the "I agree" button to be able to drive the car you bought. That and forced arbitration need to die posthaste.
Back in the day, during the original Browser Wars, when the US Department Of Justice was trying to force Microsoft to detach Internet Explorer from Windows, Microsoft argued that it was impossible for Windows to operate without IE baked in. Well, it took a couple of "hackers" about a day to prove them wrong. I ran Windows XP without IE for years just fine. So yeah, cars can run without the app.
The data is collected even if you don't use the app or hit agree. The manufacturer has your personal info attached to the car from the warranty info. They're required to collect it so they can send you recall notices.
It's trivial to put a car in limp mode if the vehicle computers don't detect all the modules the manufacturer put there. It's slightly less trivial to detect missing antennas, but that tends to disable other features people enjoy like directions and data. Manufacturers simply don't care to cat-and-mouse this right now.
You're being deliberately obtuse and that kind of contrarianism is 100% correlated with douchebaggery IMPE. Be better.
Unless you somehow aren't kidding, in which I'll clarify: I'm skeptical that a modern electric vehicle that goes to the trouble of being a computer on wheels can work without an app. And I'll even clarify "can" - the car manufacturer allows you to operate the car without using its app.
