It's a different ship, Ponty (ex-MV Polar Circle)
The previous vessel of the name was an antiquity even in the late 70s, with a fixed pitch single propeller with no reverse - to go astern the engine (huge 2-stoke diesel) had to be stopped, and re-started using compressed air. The compressed air tank only held enough for three/four starts.
She had no real ice-capability, beyond a thicker hull, and the flight deck sloped down towards the hangar.
Didn't have a wardroom - as a merchant vessel she had a saloon, and that's what it was called even when she was flying the white ensign.