Core summary
U.S. MY2021 E 450 Cabriolet and E 450 4MATIC Cabriolet. Source-based specification and buying analysis.
Buy the E 450 Cabriolet around how you will use the roof. An attractive open-top photograph is not enough: confirm passenger access, luggage with the roof stored and comfort on the journeys you take most often.
History & generations
The MY2021 update introduced a 3.0-liter inline-six with EQ Boost to the U.S. E 450 Cabriolet. It also brought MBUX and refreshed exterior details.
Body, platform & design
The updated front treatment and rear lamps distinguish this phase of the four-seat convertible. Earlier E 450 photographs should not define its cabin technology.
Engine & drivetrain
Mercedes offered both E 450 Cabriolet and E 450 4MATIC Cabriolet. AWD is therefore not a universal property of every U.S. E 450 convertible.
Trim differences
AIR BODY CONTROL suspension, multicontour seats and the Driver Assistance Package appear among optional features.
Interior & seating
Two 12.3-inch displays, AIRCAP wind management and AIRSCARF neck-level heating are listed as standard in the U.S. guide.
Efficiency & range
Request consumption evidence for the matching drivetrain. Do not merge rear-wheel-drive and 4MATIC examples simply because the engine badge is the same, especially when comparing running costs.
Safety & equipment
Include roof, seals and assistance-system diagnostics in a pre-purchase inspection. If the seller cannot demonstrate a function safely while stationary, arrange a professional check rather than improvising a test.
Strengths
Our assessment favors an owner who will use the convertible capability often enough to accept its purchase and maintenance requirements. If the roof will rarely open, compare a closed-body alternative before paying the premium.
Our assessment favors an owner who will use the convertible capability often enough to accept its purchase and maintenance requirements. If the roof will rarely open, compare a closed-body alternative before paying the premium.
Considerations
Test the climate and wind-management settings with the actual passengers. Personal tolerance for open-top noise and airflow is more important than somebody else’s description of a perfect summer drive.
Recommended use
For touring, load the car in the roof position you intend to use. For daily duty, test entry in your own narrow parking space before deciding its passenger arrangement is practical.
Rivals & related
Compare an E 53 only after establishing whether you want a performance upgrade. Do not use its equipment or engine output to fill gaps in an E 450 advertisement.
FAQ
What does AIRCAP do? Mercedes describes a wind deflector at the roof frame and a rear wind blocker. AIRSCARF is the separate neck-level heating system.
What makes the Mercedes-Benz E 450 Cabriolet different?
Our assessment favors an owner who will use the convertible capability often enough to accept its purchase and maintenance requirements. If the roof will rarely open, compare a closed-body alternative before paying the premium.
Who should consider it?
Open-top luxury touring
Sources & updates
Reference scope: U.S. MY2021 E 450 Cabriolet and E 450 4MATIC Cabriolet. Research-based guide; no hands-on road test is claimed. Manufacturer specifications are distinguished from Cariary buying interpretation. Text reviewed 14 October 2026. Sources for the revised text:
https://media.mbusa.com/news/2021-e-class-cabriolet-quick-reference-guide
- Manufacturer reference — U.S. MY2021 E 450 Cabriolet and E 450 4MATIC Cabriolet →Source used for the stated historical model-year specification; not a claim of a current range.
- Photo 1 — OWS Photography / Wikimedia Commons / CC BY 4.0 →Resized and encoded as WEBP; original composition retained. Facelift Mercedes-Benz E 450 Cabriolet, front view. Illustration of the facelift A238 generation discussed here; photographed in 2024–2025, not evidence of a MY2021 build.
- Photo 2 — HJUdall / Wikimedia Commons / CC0 1.0 →Resized and encoded as WEBP; original composition retained. 2023 E 450 Base Cabriolet with the roof open, photographed in November 2024. Equipment may differ from the MY2021 specification discussed here.
View all official references (2 more)
- Photo reuse terms — CC BY 4.0 →Applies to the photographs carrying this license above.
- Photo reuse terms — CC0 1.0 →Applies to the photographs carrying this license above.
Last editorial review: October 14, 2026. Specifications remain market- and model-year-specific.