For those worried about Rivian's performance and delivery delays, the brand seems to be working hard to turn things around. In May 2022, Motley Fool reported that delays and hikes in prices caused Rivian stock to drop by 70% in 12 months. But the maintains a market cap of $28 billion, four times that of Rolls-Royce, and continues to get good reviews from car sites including InsideEVs and Consumer Reports.