The 1800S carried on through the 1960s with mostly minor changes: another power bump (115 hp) for» 66; a switch from
upswept to straight side trim along with an optional engine - tuning kit (for 135 hp) for the American market in» 67; and a
larger, 2.0 - liter engine (118 hp) for» 69, at which point Volvo took over body stamping as well.