Outpacing pre-auction estimates that ranged from $4 million to $6 million

RM Auctions kicked off its Monterey Car Week festivities in the classiest of ways with an "Evening of Aston Martin" event, and headlining this single-make auction was a 1965 Aston Martin DB5 that sold for an astounding $6.4 million. Although this particular car was never in a Bond film, it is only one of two DB5s that were created to promote 1965's Thunderball, and these two cars featured fully functional gadgets.

James Bond DB5 With Functional Q Gadgetry Hammers for $6.4 million

The selling price outperformed initial estimates likely due to this car's rarity and significance. After its starring role in Goldfinger (the movie that precedes Thunderball), the Aston Martin DB5 instantly became known as "The Bond Car," and featured spy gadgets including battering rams, retractable machine guns, revolving license plates, smoke screen, a retractable rear bullet shield and a passenger-seat ejection system. And this car has all of these devices!

In 2010, a DB5 that was actually driven in Goldfinger and Thunderball sold for $4.6 million, but its gadgets were installed after the fact; according to the auction listing, this DB5 was built by Aston Martin with all of the devices in working order. The two promotional cars were created for the sole purpose of touring the U.S. in conjunction with movie's debut, and this car's twin was driven as a pace car by Jackie Stewart at Laguna Seca.

Gallery: James Bond DB5 Hammers for $6.4 million

More importantly, this tricked-out DB5 has a well-documented history since being sold off from the production company in 1969. It spent 35 years in the Smokey Mountain Car Museum in Pigeon Forge, Tennessee, and it was fully restored in 2012 including the refurbishment of all of the Bond-specific modifications.

Thanks to the James Bond films, the DB5 is the most famous Aston Martin ever made, and this particular car is easily one of the most famous of the DB5s.