The 964 generation of the Porsche 911 in the early 1990s saw the first radical redesign of the German sports car in two decades spawning several iconic models. If you're a fan of the 1990s air-cooled 911s, you may want to check out this upcoming RM Sotheby's auction which is selling a coveted collection of twelve 964-generation Porsche 911s. These aren't your run of the mill 911 sports cars, either. The auction, dubbed "Exclusively Porsche – The 964 Collection," presents a unique opportunity to own some of the rarest limited production 911s from the 1990s,

All have exceptionally low mileages and are in excellent condition. Among the highlights of this extraordinary collection tailored for enthusiasts include a never-raced 1993 Carrera RSR 3.8, one of only 45 ever made with a mere 475 miles on the odometer estimated to sell for between $1.2 million and $1.4 million. Complementing it is a yellow Carrera RS 3.8, one of 55 with less than 4,350 miles on the clock estimated to sell for between $1.25 and $1.5 million. There's also a yellow X85 example that's one of only 39 which could sell for between $600,000 and $800,000. Other Porsche 964s in the collection include a 1993 Turbo S 'Leichtbau' tipped to sell for as much as $1.2 million.

By far the rarest 964 in the collection, however, is one of 10 silver X83 in the world estimated at $500,000 to $650,000. If they sound too expensive, there's also a red flat-nose '89 Turbo, a yellow '91 Turbo 3.3, a silver '92 Carrera RS, a silver '93 Carrera RS America, a yellow '94 Speedster, and a yellow '94 Turbo 3.6, all estimated to command around $200 - $250,000. Clearly, the original owner had the foresight to recognize that the value of these prestigious Porsches would soar. All 11 models will be going under the hammer at the same auction as part of the Amelia Island Sale in Florida on March 10.