Compare the2025 Mercedes E-Class SedanVS 2025 Cadillac CT5

For enhanced safety, the front and rear seat shoulder belts of the Mercedes E-Class Sedan have pretensioners to tighten the seatbelts and eliminate dangerous slack in the event of a collision and force limiters to limit the pressure the belts will exert on the passengers. The Cadillac CT5 doesn’t offer pretensioners for its rear seat belts.

The E-Class Sedan’s pre-crash front seatbelts will tighten automatically in the event the vehicle detects an impending crash, improving protection against injury significantly. The CT5 doesn’t offer pre-crash pretensioners.

The E-Class Sedan has a standard front seat center airbag, which deploys between the driver and front passenger, protecting them from injuries caused by striking each other in serious side impacts. The CT5 doesn’t offer front seat center airbags.

The E-Class Sedan offers an optional Post Collision Brake, which automatically applies the brakes in the event of a crash to help prevent secondary collisions and prevent further injuries. The CT5 doesn’t offer a post collision braking system: in the event of a collision that triggers the airbags, more collisions are possible without the protection of airbags that may have already deployed.

Earlier warning of stopped traffic, traffic signals, dangerous road conditions, weather, or accidents, can keep driver's safer and prevent crashes. The E-Class Sedan has Car-to-X Communication, a system that seamlessly communicates important warnings to the driver about impending danger, if they're available. The CT5 doesn’t offer a system that can receive automated systems from infrastructure or other vehicles.

Both the E-Class Sedan and the CT5 have standard driver and passenger frontal airbags, front side-impact airbags, driver knee airbags, side-impact head airbags, height adjustable front shoulder belts, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, crash mitigating brakes, daytime running lights, blind spot warning systems, around view monitors, rear cross-path warning, driver alert monitors, available all wheel drive and lane departure warning systems.

J.D. Power and Associates’ 2024 Initial Quality Study of new car owners surveyed provide the statistics that show that Mercedes vehicles are better in initial quality than Cadillac vehicles. With 8 fewer problems per 100 vehicles, JD Power ranks Mercedes higher than Cadillac.

The E 350 Sedan’s standard 2.0 turbo 4-cylinder hybrid produces 18 more horsepower (255 vs. 237) and 37 lbs.-ft. more torque (295 vs. 258) than the CT5’s standard 2.0 turbo 4-cylinder. The E 450 Sedan’s standard 3.0 turbo 6-cylinder hybrid produces 40 more horsepower (375 vs. 335) than the CT5’s optional 3.0 turbo V6.

As tested in Car and Driver the E 450 Sedan 3.0 turbo 6-cylinder hybrid is faster than the Cadillac CT5 turbo V6:

On the EPA test cycle the E-Class Sedan gets better mileage than the CT5:

Regenerative brakes improve the E-Class Sedan’s fuel efficiency by converting inertia back into energy instead of wasting it. The CT5 doesn’t offer a regenerative braking system.

The E-Class Sedan has a standard locking fuel door which locks and unlocks with the power locks. The fuel filler door is not lockable on the CT5. A locking fuel door helps prevent fuel theft and vandalism, such as sugar in the tank.

In its Green Vehicle Guide, the U.S. Environmental Protection Agency (EPA) rates the Mercedes E-Class Sedan higher (6 to 7 out of 10) than the Cadillac CT5 (4 to 6). This means the E-Class Sedan produces up to 13.2 pounds less smog-producing pollutants than the CT5 every 15,000 miles.

The E-Class Sedan’s launch control uses engine electronics to hold engine RPM’s precisely in order to provide the most stable and rapid acceleration possible, using all of the available traction. The CT5 doesn’t offer launch control.

For better stopping power the E-Class Sedan’s brake rotors are larger than those on the CT5:

The E-Class Sedan’s standard front and rear disc brakes are vented to help dissipate heat for shorter stops with less fading. The rear discs standard on the CT5 are solid, not vented.

The E-Class Sedan stops much shorter than the CT5:

The E-Class Sedan’s 275/30R21 rear tires provide better handling because they have a lower 30 series profile (height to width ratio) that provides a stiffer sidewall than the CT5’s optional 35 series tires.

For better ride, handling and brake cooling the E-Class Sedan has standard 21-inch wheels. The CT5’s largest wheels are only 20-inches.

The E-Class Sedan offers an available driver-adjustable suspension system. It allows the driver to choose between an extra-supple ride, reducing fatigue on long trips, or a sport setting, which allows maximum control for tricky roads. The CT5’s suspension doesn’t offer adjustable shock absorbers.

The E-Class Sedan has a standard automatic front and rear load leveling suspension to keep ride height level with a heavy load or when towing. The E-Class Sedan’s height leveling suspension allows the driver to raise ride height for better off-road clearance and then lower it again for easier entering and exiting and better on-road handling. The CT5 doesn’t offer a load leveling suspension.

The E-Class Sedan’s drift compensation steering can automatically compensate for road conditions which would cause the vehicle to drift from side to side, helping the driver to keep the vehicle straight more easily. The CT5 doesn’t offer drift compensation steering.

For better handling and stability, the track (width between the wheels) on the E-Class Sedan is 1.3 inches wider in the front and .8 inches wider in the rear than on the CT5.

The E 350 Sedan 4MATIC handles at .93 G’s, while the CT5 Premium Luxury pulls only .87 G’s of cornering force in a Car and Driver skidpad test.

The E 450 Sedan executes Motor Trend’s “Figure Eight” maneuver quicker than the CT5 Sport (25.8 seconds @ .73 average G’s vs. 26.2 seconds @ .68 average G’s).

For better maneuverability, the E 350 Sedan’s turning circle is .9 feet tighter than the CT5’s (38.1 feet vs. 39 feet). The E 450 Sedan’s turning circle is 1.3 feet tighter than the CT5 AWD’s (39.4 feet vs. 40.7 feet).

The E-Class Sedan has 1.1 inches more front shoulder room, 1 inch more rear headroom and 1.4 inches more rear shoulder room than the CT5.

The E-Class Sedan has a larger trunk than the CT5 (12.7 vs. 11.9 cubic feet).

Pressing a switch automatically lowers the E-Class Sedan’s rear seats, to make changing between passengers and cargo easier. The CT5 doesn’t offer automatic folding seats.

With its sedan body style, valet key, locking rear seatbacks and remote trunk release lockout, the E-Class offers cargo security. The CT5’s non-lockable folding seat defeats cargo security.

To make loading and unloading groceries and cargo easier, especially for short adults, the E-Class Sedan has a standard power trunk, which opens and closes automatically by pressing a button or just by kicking your foot under the back bumper, completely leaving your hands free. The CT5 doesn’t offer a power trunk, so its trunk has to be closed manually.

Unlike the driver-only memory system in the CT5, the E-Class Sedan has standard driver and passenger memory, so that when drivers switch, the memory setting adjusts the driver’s seat, steering wheel position and outside mirror angle and the front passenger seat also adjusts to the new passenger’s preset preferences.

Heated windshield washer nozzles are optional on the E-Class Sedan to prevent washer fluid and nozzles from freezing and help continue to keep the windshield clear in sub-freezing temperatures. The CT5 doesn’t offer heated windshield washer nozzles.

A power rear sunshade and manual rear side window sunshades are optional in the E-Class Sedan to help block heat and glare for the rear passengers. The CT5 doesn’t offer a rear or rear side window sunshades.

The Mercedes E-Class Sedan has power folding mirrors that offer unparalleled convenience while maneuvering in tight places or parked. With the mirrors folded it’s easier to walk past and help prevent parking damage. The mirrors can be quickly unfolded when the driver is ready to leave. Power folding mirrors costs extra on the CT5.

Both the E-Class Sedan and the CT5 have standard heated front seats. The E-Class Sedan also offers optional heated rear seats to keep those passengers extremely comfortable in the winter. Heated rear seats aren’t available in the CT5.

The E-Class Sedan’s Active Parking Assist can parallel park or back into a parking spot by itself, starting, stopping and changing direction automatically. Remote Parking Assist will park and retrieve your car remotely: press a button and watch it park itself. This is ideal for tight locations. The CT5’s automatic parking system does not offer parking by remote control.

The Mercedes E-Class comes in sedan and station wagon bodystyles; the Cadillac CT5 isn’t available as a station wagon.