“Considering how the Sims 4 is constructed cars will likely (at least I hope so) function like they did in the Sims 4. If you have your car placed on the driveway near the sidewalk the sims will get in and the car will drive onto the road and drive off. If your car isn’t near the sidewalk your sims will still get in, but the car will just teleport onto the road and drive off that way.

Other interactions the car would have are the classic woohoo, kiss, makeout options alongside the mess around interaction we got with the Sims 4. I really liked teaching your teen sims to drive in the sims 3, so maybe they could they could have a new lot type that looks like an empty parking lot or abandoned airport lot where they adult sim could teach the teen to drive. The teens could also learn to drive from any adult, doesn’t have to be their parent. If a teen sim is gifted a car, they could have the brag to friend about car interaction or something. Teen sims could also have the drive friend(s) or family around interaction (where it takes you to the map and your teen sim drives to the destination) and if they have mastered driving yet there would be a great chance that they would get in an accident and wreck the car, and a very small chance that they’d die (don’t want your sims dying willy nilly now do we?). Teens can also sneak out (parenthood) by themselves or with others using the car and if they’re not great at driving they have a higher chance of waking their parents up and getting caught. (This is just a maybe but if they were to add police, if your teen sim hasn’t mastered driving, if they’re caught after a certain time driving, there could be some serious concequences).

Other things that would be could are if they brought back fixer upper cars so sims can have a cheaper way to get cars. This interaction would increase the sims handiness skill or it could be it’s own skill entirely. Teens and up could work on them, but if there is a teen or older already working on the car, a child sim could help and a toddler could observe. Your sim could buy a fixer upper car, but if you wrecked your car, you’d be able to fix that. They could also add junkyards for your sim to find parts and build a car.
There could be a new mechanic job for npcs or for your sim (sort of how the mixologist career works and how you’ll actually see those with the mixologist career being mixologist at bars, parties, and such). There could also be a vehicle enthusiast trait (name your car, become friends, marry the thing? Who know?)
There could also be racing or something else of the sort.

They should also bring back school buses. I found it kind of weird that they didn’t add them in the game already considering both the Sims 2&3 had them. The school buses would come the the front of your sim’s home and pick up the children and you’d see an actual animation of them getting in the bus (none of what they pulled for City Living, not adding an animation for the elevator?!? Talk about lazy! I seriously think they should patch in an animation for the elevator alongside an elevator woohoo even if it means reusing the same woohoo animation from the Get Together closet woohoo!). Tangent aside, bring back school buses and animate them getting in the bus. If a sim missed the bus, they could walk/drive to school, they could also have an older sim drive them to school. It would also be cool to drive your toddler to daycare.

Also it would be neat to if they brought back bicycles and strollers.

All of this just adds depth to the game, and in my opinion that’s what this game desperately needs.

EDIT: I think it would be cool if there were drive in movie dates. It would also be neat for your sim to be able to have their first kiss in a car, whether it be on a date or just casually it would be neat to have a first kiss in the car. (I’m a sucker for realism in these games)

Also I can’t believe I forgot to mention this but carpools need to come back. I really don’t like your sims poofing in and out of existence (side eyes elevators). I think it would be cute if child sims could sit in the front seat and pretend to drive. If there were burglars you could have them steal your car and drive away with it, if the cops didn’t arrive fast enough (if they were both in the game).”