A brilliant McLaren F1 LM Specification will be auctioned by RM Auctions.

Set to go under the hammer on August 13-14 during an event in Monterey, California, this true classic wears a chassis number 63 and is one of only two factory-upgraded LM Specification models. The machine has a BMW-sourced V12 engine with 691 PS (508 kW), an upgraded gearbox and “numerous other mechanical upgrades”.

Despite being a very rare track-oriented version, the F1 LM Specification has a full road-spec interior and also features the High Downforce Package. Finished in dark red color, the vehicle comes with an original multi-spoke wheels and a fixed rear wing.

Gallery: Amazing McLaren F1 LM Specification going up for sale

Got a tip for us? Email: tips@motor1.com