Click above for a high-res gallery of the 1954 Dodge Firearrow III Sport Concept

The annual auctions in Arizona are a little more than a month away, and RM has put together an impressive lineup of vehicles that will be crossing the block. The highlight will probably be an original 1963 Corvette Grand Sport, but two 1950's show cars should grab some attention as well. The first is a Dodge Firearrow III Sport Concept that made its debut at the 1954 Detroit Auto Show (you might also remember the Firearrow II and IV convertibles that sold at Barrett-Jackson in 2007). The concept was Chrysler's answer to the soon-to-be Ford Thunderbird and Chevrolet Corvette and was fully functional down to the roll up windows. So functional, in fact, that it broke a closed-course record of 143.44 mph at Chrysler's proving grounds that that year. The car was restored to show condition in the early 90's, and after being exhibited at numerous museums around the country, it is being offered for sale for the first time in more than 20 years with bids expected to exceed the one million dollar mark.

The second vehicle, known as the Saturn 'Bob Hope Special', is a one-off custom built in 1950 at a reported cost of $12,000. The car is built on a modified Mercury chassis and features handmade bodywork and a dashboard reminiscent of an airplane cockpit with 32 individual controls. Legendary entertainer Bob Hope fell in love with the car, and even planned to include it in one of his movies. While the movie didn't pan out, Hope continued to drive the car around Hollywood giving the car its name. More details on both cars in the press release after the jump, and beautiful high-res photos of both cars courtesy of RM Auctions can be found in the galleries below.