It is confirmed that Hyudai Azera cabs belongs to Comfort. They are registered with SHA , SHB & SH regos.
Just now at about 5.45pm i was travelling in the MRT going toward Bt Gombak then i saw 1 Hyundai Azera taxi at the Blk395A multi storey carpark.
I personally prefer Sonata's design to Azera.