Increasing the number of cars per household
It would be great if someone could create a mod that would increase the likelihood of households purchasing a second or even more cars, as well as make it so that purchased cars can actually be used. From what I can see right now, residents go to the car dealership to buy a car, but the car doesn't spawn either at the dealership or at their home. Maybe the new car spawns at an outside connection, but either way, I don't see any visible effect from visiting the dealership in terms of increasing the number of cars.
I'm building an American suburb, and I would really like to have an average of 2–3 cars per household, depending on the number of family members. Right now, though, households usually have either no cars or just one, and the second family member still walks to work across the entire map. That's absolutely unrealistic for an American city.