Seconds Saturdays regular Tim just picked this up. He writes:
This is "a 1962 Citroen 2CV (kept stored in the Mojave desert area since 1985), almost one owner from new and used extensively in films and commercials in Southern California from the 1960's to the 1980's. It is a rare from new "California" model 2CV (this needs a little explaining). Has a 12 horsepower 2 cylinder motor, maybe 45mph tops on a flat road. It was used in an episode of Get Smart in 1968."