sentences:  The 1958-1965 Hongqi CA72 was a luxury car, of which approximately 200 were built for government officials.It was powered by a Chrysler LA engine and built on the chassis of a 1950s Chrysler Imperial.The 1934-1938 Tatra 77 rear-engined sedan was initially powered by petrol V8 which was air-cooled and used an overhead camshaft which operated the valves using a 'walking beam' rocker arrangement.