Executive Car Service operates both the Mercedes-Benz S580 and the Cadillac CT6 as part of our premium Seattle chauffeur fleet. Both are exceptional luxury sedans — but they serve different clients, occasions, and expectations. This guide will help you choose the right vehicle for your specific trip.
The S580 is the flagship of our fleet — the vehicle we recommend when making an impression is part of the brief. Nappa leather, 64-color ambient lighting, massage seats, MBUX rear infotainment, and an acoustic cabin that filters out the world make the S580 the right choice for:
The CT6 is our most requested corporate sedan for a reason. It delivers a premium, professional experience without the prestige premium of the S580 — making it the practical choice for daily executive travel, recurring corporate pickups, and business travelers who want comfort and reliability above all.
The CT6 is the right choice for:
| Category | Mercedes-Benz S580 | Cadillac CT6 |
|---|---|---|
| Best occasion | VIP, prestige, special events | Corporate, daily executive travel |
| Interior finish | Nappa leather, ambient lighting | Premium leather, executive finish |
| Massage seats | Yes | No |
| Rear infotainment | MBUX touchscreen | Standard system |
| Statement level | Maximum | Professional |
| Ideal client | Dignitaries, VIPs, special occasions | Executives, corporate accounts |
| Availability | 24/7 advance booking | 24/7 advance booking |
If you're unsure which vehicle best suits your trip, call us or request a free quote and describe your occasion. Our team will recommend the right vehicle based on your pickup location, guest profile, and budget — at no obligation.
