Rivian will sell its commercial electric vans to any U.S. business that wants one — more than a year since ending an exclusivity deal with backer Amazon.The company will sell two vans — the smaller 500 and the larger 700 — but buyers will have to be registered businesses, according to the company. That means any hopeful van-lifers will have to wait and see if Rivian ever sells them direct. The launch of its commercial van fleet business opens up a potential revenue stream that has sat dormant since Rivian ...