Phone still pings towers, and there's another sim/baseband processor in your car pinging towers too if it's not an old car

Drive to somewhere you don't want to go to mix things up and keep them confused. Where the ground is soft, jump out of the car mid journey.

Its still trackable, i think its just less on a silver platter but if someone wants to know they can piece everything together.

I think it's all depends on who is gonna track you. With your current setup I can't track you, or may be most of the people in the world can't track your route. But if a professional hacker or The secret service decides to track you, I think they can. Although whether they can reach you or not might...