A 1973 Porsche 911 Carrera 2.7 RS is being sold in Monaco next month, with bidding expected to reach in excess of $220,000, due to its superb condition and rare brown paint job.

This car was built during the 1970s as part of a run of just 500 Rennsport vehicles and so at the time, it was eligible to compete in the World Sports Car Championship.

The current owner acquired it five years ago and in the interim performed extensive restoration work inside and out, which means that the engine develops 210 bhp and there are hydraulic disc brakes on all four wheels.

It has changed hands a number of times before its most recent acquisition, with AMOG reporting that it had been in the collection of an unnamed racing driver from the golden era of this particular car.

There are many other classic cars for sale during the RM Auctions event being held on May 12th, but the 911 Carrera 2.7 RS is sure to draw plenty of attention, thanks to its impeccable racing pedigree and unusual paint job.

The exclusivity of the auction is defined by the fact that to even participate, you must pay $131 for an official catalogue.