Well, one person decided a regular old Mercedes-Benz S-Class sedan wasn't good enough for them. This buyer called for something special: a one-of-twenty-five Cadillac Celestiq. 2025 Cadillac Celestiq Invitational side angle in black while parked Bring a TrailerThe Celestiq isn't just any Cadillac. Cadillac Celestiq Specs And Features2025 Cadillac Celestiq Invitational interior view of the front cabin Bring a TrailerCadillac built the Celestiq with a balance of power and class. iSeeCars shows data to suggest the S-Class sedan loses 55.4% of its value in the same time period, regardless of trim level.