Rivian needs to offer a set of wheels and tires for Winter weather as an option. In other words when you buy the truck you buy 2 sets of wheels and 2 sets of tires. The cost needs to be close to actual cost.
They are an electric vehicle company first and foremost, not an auto parts store. With current supply chain issues, they need to ensure they have 4 wheels and tires for all of the trucks they are trying to ship before they start offering 8.