1906–08 Delaunay-Belleville HB4 Phaeton CV24, chassis number: 4979V coachwork: Phaeton Tourer registration number: MH12 (current Spanish de-registered 2014. ) Engine number: 4979V. The French Delaunay-Belleville was an internationally coveted prestige car in the first decade of the 20th century. Produced under the exacting direction of manufacturing magnate Louis Delaunay-Belleville, the marque made its debut at the 1904 Paris Salon. The chassis, engineered by former Benz designer Marius Barbarou, featured a distinctive round radiator, patterned after the steam boilers the car’s parent firm had long supplied for naval use.