The T-Head, Overhead Valve, Overhead Cam, and Twin Overhead Cam engines were discussed for this demo day, celebrating the development of the racing sports car engine. The discussion covered how advances in technology allowed for increasing RPM and power featuring four cars from the collection with different types of engines. The 1909 American Underslung, 1938 Peugeot 402 Darl’Mat Le Mans, 1927 Bentley 3 Litre Speed Model, and the 1958 Ferrari 250 Testa Rossa were featured.