In Space 1992: Rise of the Chaos Wizards, there are multiple examples of characters travelling interstellar, and even intergalactic distances by riding giant metal dragons through space (as well as on giant eagles).
T = 365/2
= 182.5 X 24 X 60 X 60
= 15768000s
T = 2,500,000LY/15768000s
= 1.49995694e15/299792458
= >5003317.8 C
Final Results
Giant Metal Dragons traverse space = >5003317.8 C
In total, the events of 1992: Rise of the Chaos Wizards takes place in a single year (1992) at absolute maximum.
So we have an intergalactic distance travelled and back in the span of less than a year at most, given Zargothrax returns to Dundee from the Darkstorm Galaxy, and the Questlords of Inverness return to Mars from the Ancient Crystal Galaxy.
The nearest major galaxy to the Milky Way is the Andromeda Galaxy, which lies 2,500,000 lightyears away from the Earth.
T = 365/2
= 182.5 X 24 X 60 X 60
= 15768000s
T = 2,500,000LY/15768000s
= 1.49995694e15/299792458
= >5003317.8 C
Final Results
Giant Metal Dragons traverse space = >5003317.8 C