The document summarizes several extraordinary cars built before World War 2, providing details on the engine size, number built, notable features, and awards or records set for each car. Specifically it mentions cars from Alfa Romeo, Bucciali, Bugatti, Daimler, Delahaye, Mercedes-Benz, Napier-Railton, Rolls-Royce, Voisin, and Talbot-Lago with engine sizes ranging from 2.9 to 24 liters and production numbers between 1 and 20 for most of the high-end, often custom or one-off vehicles.