Are Rolls-Royce and Bentley cars related?

Yes, Rolls-Royce and Bentley cars are related; both brands share a common heritage. Bentley was founded in 1919 by Walter Owen Bentley and became a subsidiary of Rolls-Royce in 1931. While they operate as separate luxury brands today, they both fall under the umbrella of the Volkswagen Group, which acquired Bentley in 1998, while Rolls-Royce remains owned by BMW. Their collaboration has influenced their engineering and design philosophies over the years.