Chapron also created five convertibles (SM Mylord) and seven sedans (SM Opéra). Original examples of these rare models are very valuable – the last "MyLord" sale recorded was for €548,320 in February 2014. Some SM owners have made their own copies of the SM convertible in particular. Unlike the DS, the factory never authorized a convertible model, as Citroën felt the roof was integral to the structure of the SM. On the SM, the roof and rear quarter panels were welded on.