I've checked down the back of the sofa - nope, can't find enough 
cars.bonhams.com
Bonhams Cars : 1978 Lotus-Cosworth Ford Type 79 'John Player Special' Chassis no. 79/4 (in period aka 'JPS22')
• The most-globally significant car of the Andretti Dynasty's glittering heritage • 'Black Beauty' – Consistently adjusted the best-looking Formula 1 car of them all. • The only surviving American-driven Formula 1 World Championship-clinching car • The last Lotus to secure the Formula 1...
