Warren Buffett, worth an estimated $160 billion, continues to drive a 2014 Cadillac XTS, purchased by his daughter, reflecting his frugal lifestyle. He prefers efficiency over extravagance, having lived in the same Omaha home since 1958. In contrast, Charlie Munger, Berkshire Hathaway's vice chair, valued simplicity, humorously suggesting that his idea of luxury was an air-conditioned bus, only opting for it when fares were low.