Thanks for all the responses to my thread! I think decorative cars for driveways are cool. I like the truck that came with cottage living in debug. More of that is all I need.
I do miss the carpool for careers, and as you got promoted the car would change. I also liked working on cars in Sims 2 Free Play. And when there were actual brand-name models in the game that was fun too. Car related clutter would be delightful. Gas can, tire iron, tool boxes with wrenches, an air pump. Garage stuff basically.
I wasn't a big fan of Sims 3 open world. I don't need the cars to be animated.