From the listing for this 1977 McLaren F1 car for sale:

Chassis No. 12 Driven by Jochen Mass in the 1977 season. His best result was 2nd place in the Swedish GP Probably the most original of all surviving M23s with a continuous history. It has maintained to a high standard by 2 long term owners. Fitted with a fresh DFV engine and a 6 speed gearbox developed by McLaren for the ’77 season The perfect car for Monaco 2018 or a serious collector.

From Wikipedia:

The McLaren M23 was a Formula One racing car designed by Gordon Coppuck, with input from John Barnard, and built by the McLaren team. It was a development of the McLaren M16 Indianapolis 500 car. A Ford Cosworth DFV engine was used, which was prepared by specialist tuning company Nicholson-McLaren Engines. This helped push the DFV’s horsepower output to around 490 bhp.

Listed for sale with

Price: P.O.A

For more information visit listing