No they still make the big Phantom in sedan, coupe and convertible. Although I believe its a BMW V12 under the hood in those as well. There was a proposal to do a V16 in the Phantom, but the idea was dropped.There are Chinese V12s?
Ferrari does still have the 12 in the F12berlinetta (I hate the name of this car oh-so-much) and the LaFerrari I suppose.
Not sure about RR either. All they make now are the Ghost and Wraith, which are touted up BMW 7-series. Eh.