When it was introduced in 1957, the 210 was the flagship of the Cessna piston single lineup, which over the years has included some of the most popular airplanes ever built. At first, the Centurion was little more than a 182 with retractable landing gear — which isn't much of a knock — but it soon got its own identity, with its signature cantilevered wing, six-seat interior and more-powerful engine that made it a hot seller for Cessna for many years. There was, it goes without saying, a turbocharged version of the model that came along in the mid-1960s, and it, just like every turbocharged model the company has introduced, sold better than the original. A pressurized version, the P210, arrived in the late 1970s. Overall, Cessna built just fewer than 10,000 210s, an average of more than 350 a year. There are still a lot of these airplanes around, and they were mostly used as personal transportation airplanes, unlike 172s and even 182s, which were often used as training, rental or working airplanes. Consequently, most 210s have many fewer hours on them than other fixed-gear Cessna singles of the same vintage do.