CC991 i dunno knw...never 'see' before but CV991 have.. CV is
Command Vehicle which is a mobile headquarters command and control
centre. Very rare to see this CV in action unless something major
happens in S'pore. Only time to spot this CV is during major events
like NDP, IMF meetings, etc...
CV i know... division CVs are red Hino buses with callsigns CV19,
29, 39, 49...
the HQ CV is white with callsign CV991. super big bus...