<Tr> <Th> Production </Th> <Td> 1959--1968 (sedan) 1961--1971 (coupe and cabriolet) </Td> </Tr> <Tr> <Th> Layout </Th> <Td> FR layout </Td> </Tr> <Tr> <Th_colspan="2"> Powertrain </Th> </Tr> <Tr> <Th> Engine </Th> <Td> 2.2 L I6 2.3 L I6 2.5 L I6 2.8 L I6 3.5 L V8 </Td> </Tr>

When did the mercedes s550 body style change