Buyers are feeling more confident about shelling out six figures for a set of wheels as market investors have been on a tear in recent months, pushing the Dow Jones Industrial Average solidly past 20000, on bets that the Trump administration will enact business-friendly policies. Sales of vehicles made by Volkswagen AG’s Bentley, Ferrari SpA , Fiat Automobiles NV’s Maserati, Porsche AG and BMW AG’s Rolls-Royce jumped an estimated 18% since the Nov. 8 U.S. presidential election through January, compared with the same period in 2016, according to Autodata Corp. That far outpaces the gains these upscale brands had been notching through the prior 10 months.