Black Book was first published in 1979 but cap said that print users have dwindled in recent years as the guide has grown to contain over 60,000 vehicle IDs. Instead, the Black, Green and Red books will all move to digital subscriptions. 

The final print edition will be delivered in April 2017, with subscribers able to sign up for a print edition until April 2016. From January 2016, print subscribers will be offered a three-month free trial of the digital platform. 

Earlier this month Cap announced plans to significantly expand its digital capabilities, with Joel Albyn newly appointed as director of innovation and product management to lead the rollout of new data products and devise new digital strategies. 

Derren Martin, senior editor at cap Black Book, said: “Our digital services offer quick and easy access to real-time pricing whether you are sat at your desk or using a smartphone while on the move. 

“We aim to deliver the most reliable data in the industry across the widest range of digital platforms. The coming months will see a host of innovations that take our services to the next level, and help customers work efficiently in an ever more connected automotive industry.”