Using this Hot Wheels City Car Wash is super easy. First, after your car has had an adventure in Hot Wheels City, place it at the entrance of the car wash. Then, turn the logo sign. The car will automatically move through the wash and you can watch it clean through the transparent windows. When it's done, drive the car up the ramp. You can either refuel it or park it there. You can connect this set to other Hot Wheels sets at the multiple connection points to create a bigger play area. Remember, each set is sold separately, so availability might change. Also, since colors and decorations can vary, don't be surprised if your set looks a bit different from others. As for maintenance, just keep it clean and dry. If there are any loose parts, you can gently put them back in place.