Its a mystery truck on Biglorryblog

Opening up a sealed  German World War 2 tunnel, explorers were astounded to find what appears to be a British truck entombed in the tunnel.

Daniel sent in these images  with a request- can anyone identify the make/model?

“This has been a puzzle of years my end” says Daniel “I took some small parts out and found German flaktarten paint work on it But Its 100% British It’s right hand drive and dials are in english

as well as the gapping for valves on the side of the block ”

It has a 6 cylinder petrol engine and and twin wheel rear axle

so can anyone help..