A couple of films showing that Steam Lorries are not slow lumbering monsters - The Sentinel S model was capable of 60 MPH, a feat few 1930s petrol lorries could equal.
I remember seeing one, a very decrepit Sentinel, on Hagley Road when I was young - a few were returned to the road during the Suez crisis in 1957.
YouTube - Sunday Steam-up
YouTube - Sentinal Steam Lorry
Here's a 1933 Sentinel 'S' type,seen regularly at a steam rally at Malpas,Shropshire.............................Mal