No idea what film, but normally Mr Whippy was a good customer of the Commer/Karrier BF (see bottom pic). And yet that one looks strangely like an Austin FG. You remember them, they had the little glass windows in the cab so you could see what you were about to hit... I know this, I learned to drive in one!
It might be that the FG was only used by Superwhippy, in which case I stand corrected. It's an odd thing to have a truck with a two ton payload for use in the icecream business.
Oh and FWIW I f**k*ng hated Tonibell icecream, it made me feel sick and their vans were sh*t.
