<Tr> <Td_colspan="2"> 1961 Chevrolet Impala Convertible </Td> </Tr> <Tr> <Th_colspan="2"> Overview </Th> </Tr> <Tr> <Th> Production </Th> <Td> 1960--1964 </Td> </Tr> <Tr> <Th> Model years </Th> <Td> 1961--1964 </Td> </Tr>

When did the chevy impala change body styles