Can't afford to buy a US$3m Ferrari Enzo? Lease it instead

New York

AS A boy, Bill Ceno dreamed of owning a Porsche. His parents bought him model cars. He obsessed over the 1960s cartoon Speed Racer. And in his spare time, he drew pictures of sports cars.

By age 24, he had bought the real thing: a 1978 Porsche 930 Turbo. It was 1985, and he drove the car every day. When he was named employee of the month at the engineering firm where he worked, he parked it next to the chief executive's spot. "He only had a Lexus, and I had a Porsche 930 Turbo," he said. "That was awesome."

But as his interest in collectible supercars - so called because they are the fastest of the fast…