NEW YORK ( TheStreet) --I recently drove the Rolls-Royce Wraith, which is the BMW-owned luxury brand's all-new coupe, with a base price of $285,000. I believe this to be Rolls-Royce's last non-electric car, marking the end of a century-old era of making gasoline-only cars.Rolls-Royce was purchased by BMW in 1999 and delivered its all-new car, the Phantom four-door sedan, in January 2003. Since then, it has added a variety of new models as well as updated the Phantom a year ago. Rolls-Royce is approaching 4,000 cars per year, with prices starting under $300,000 but typically approaching $500,000. A large percentage of the cars are "bespoke" -- or customized, with all sorts of leather, paint and other special one-off jobs. These are high-margin options.