What are some of the bentley arnage camshaft problems?

There is a long documented history of issues with the camshafts, push rods, and tappets on Bentley and Rolls Royce V8 engines, and unfortunately this also extends to the production years of the Bentley Arnage. If You're paying as significant amount for a vehicle as You would for an Arnage, You'll likely want some guarantee of reliability; unfortunately, the camshaft issue prevents that assurance. If and when Your camshaft, tappets, or push rods fail, You'll likely be looking at a repair bill upwards of $3,000, not including any damage that the failure caused in the process, if it were catastrophic. This leads many enthusiasts to recommend skipping these engines, since they're viewed as a ticking time bomb. For more information on specifics of the issue, see the video and write up found at https://www.introcar.co.uk/blog/2019/03/main-issues-with-the-v8-camshaft-on-Rolls-Royce-Bentley-cars/ .