André Dubonnet entered an H6C Boulogne in the 1924 Targa Florio. Powered by a 7,982 cc (487.1 cu in) straight 6 (estimated to produce 195 hp (145 kW)), Dubonnet demanded a maximum body weight of 100 lb (45 kg), and the aircraft maker Nieuport- Astra complied with tulipwood strips (later determined to have been mahogany),[citation needed] fastened to an aluminium frame with thousands of tiny rivets. Dubonnet finished the gruelling event without a body failure, and drove home to Naples afterward. This vehicle is currently housed at the Blackhawk Museum near Danville, California.
