Nissan announced in plans to build a convertible version of its popular Murano crossover. ?Nissan revealed the concept at a Las Vegas dealers meeting in August calling it a family adventure vehicle.? The two-door soft-top is being called the CrossCabriolet, and it?s expected to go on sale in early 2011.? Nissan plans to unveil the CrossCabriolet to the public at the Los Angeles Auto Show in November.?? Chrysler made a similar move in 2005 when they built a convertible version of the PT Cruiser, however the Murano is 20 inches longer and six-inches taller than the PT Cruiser.