A RARE Aston Martin DBR1 once raced by Jack Brabham could fetch more than $US20 million when it comes up for sale in August.

Built in 1956, this DBR1 was campaigned by the some of the biggest names in the racing world – Carroll Shelby, Roy Salvadori, Stirling Moss, and Aussie Jack Brabham all took turns behind the wheel of this beauty.

This particular car competed in a number of high-profile events, most notably the 1000km Nurburgring where it won overall in 1959 after previously entering in 1957 and 1958.

It also raced three times in the 24 Hours of Le Mans – where it made its debut in 1956 – and twice in the 12 Hours of Sebring.

RM Sotheby’s – the auction house handling the sale – has claimed it to be “the most important Aston Martin ever produced”, which they would say as they are trying to sell it.

However, it’s easy to agree with them given this DBR1’s storied history.

For those with a budget unable to stretch that far, three other Aston racers are listed among the Monterey lot – a 1935 Ulster Competition Sports, a 1959 DB4 GT, and a 2006 DBR9 are also listed.

As for us mere mortals lacking such boundless amounts of cash, at least we can admire the bite-the-back-of-your-hand beauty of this thing on our screens.