"he drives a Rover in the city and a Winnebago on the road"

 The Rover Company is a former British car manufacturing company founded as Starley & Sutton Co. of Coventry  in 1878.  One likely candidate for Henning Hale-Orviston's Rover model was the Rover P4 series, a group of saloon automobiles produced from 1949 through to 1964



 Winnebago Industries was founded in February 1958 in Winnebago County, Iowa. In 1966 the first motor home rolled off the  assembly lines.