Four vehicles of the Museum of British Road Transport at Coventry were selected for a detailed metallurgical study of selected case engine components in an attempt to cover them at the 20th Annual Conference. The 1910 Maudslay car and the 1948 Maudslay coach together with the 1897 and 1950 Daimler cars represent the beginning and the end of the period under consideration at the conference. An example of an aluminum alloy, a bronze and cast iron component from each car was sampled by drilling and the drillings analyzed by x-ray fluorescence techniques. The carbon content of the cast irons was determined by wet analysis. Commentaries on the results together with a short history of the Maudslay and Daimler car companies are presented also.