I mean, it's all well and good to have car free zones, but if the lack of cars doesn't become an issue in and of itself, then you might as well have invisible cars. If you're just gonna have invisible cars, what's the point in buying the DLC
So some issues with car free zones include- parking- where do you leave your car when not in use? If you just have pocket cars, then that just becomes invisible cars
Logistics- As a courier, this is something I can relate to- how do you deliver things to places without a vehicle? Letters and small parcels can be delivered by bikes and motorbikes, but what about larger items? E.g. truck loads of stock for supermarkets? Or frozen food? Or televisions? How do you deliver that stuff?
Emergency services- how do police, Police motorbikes? What about fire services and ambulances operating in places with no car access? And for that matter, what about garbage and dead removal? And (where applicable), snow removal?
What about the disabled? How do they get around without cars
If these issues don't get addressed by the P&P DLC, then you just have invisible cars, which isn't worth downloading
Also, other features which aren't worth downloading the game without:
Public transport hubs which are accessible without cars. I mean, how do you have a walking area without public transport access?
Other features would be nice to have include:
Car ferries- considering that this DLC will need to disable pocket cars, now's the chance to add car ferries. Having car ferries distinct from passenger ferries will allow car free islands
Police stations plopable in car free zones which use police motorbikes
Decide which vehicles can use car-free zones- (vespers? e-bikes? motorbikes? bikes? Golf buggies?) Golf buggies would probably better with a golf course DLC, and then you can make laws about where you can drive golf buggies- but this way, you can have golf Buggie only roads
Bus only roads- the workshop has these, but they're lacking. Bus only roads can also create proper Bus Rapid Transit Systems
Mixed zones- Please introduce these