You can easily discover the city with a hired campervan or motorhome. There are around 13 parking garages in the city centre where you can park. Park + Ride is the cheapest (and easiest) option where you can leave your camper on the outskirts of town for free and then take the public transport into the city.
There is free short-term parking at the street in front of the station for loading/unloading the cHar, long term parking is located at the P+R “Hinterm Sielhof” (Neuenlanderstr. 444, 28201 Bremen) which is 5km from the roadsurfer station