Well, a Rolls-Royce Phantom V Motorcar is rather spacious inside.
According to
Rolls-Royce - The Complete Works (The Best 599 Stories about the World’s Best Car)
by Mike Fox and Steve Smith, Guild Publishing, London, 1984
“John Lennon’s Rolls-Royce had a bed in the back.”
However, in the category “British musicians and their Rolls-Royce Motorcars”, it’s hard to top Keith Moon.
From the same source:
"Keith Moon, drummer of The Who, was a good customer of Rolls-Royce but an erratic driver, as was demonstrated the day he sold his lavishly appointed house. The morning after he moved out, Moon received a frantic phone call from the new owner.
“There’s a Rolls-Royce in the swimming pool!” he complained.
“Oh yeh, forgot to tell you. I took a right when I should’ve took a left. Sorry,” replied the imperturbable Loon [sic].
