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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 the rear seat belts.
The rear seatbelts optional on the E-Class Sedan inflate when a collision is detected, helping to spread crash forces over a much larger area of the body and limiting head and neck movement. This can help prevent spinal and internal injuries. The CT5 doesn’t offer inflatable seatbelts.
The E-Class Sedan’s standard pretensioning seatbelts also sense rear collisions and remove slack from the seatbelts to help protect the occupants from whiplash and other injuries. The CT5 doesn’t offer a whiplash protection system.
The E-Class Sedan’s driver alert monitor detects an inattentive driver then sounds a warning and suggests a break. According to the NHTSA, drivers who fall asleep cause about 100,000 crashes and 1500 deaths a year. The CT5 doesn’t offer a driver alert monitor.
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, rearview cameras, available lane departure warning systems, around view monitors and rear cross-path warning.
For its top level performance in IIHS driver and passenger-side small overlap frontal, moderate overlap frontal, side impact, roof strength and head restraint tests, its standard front crash prevention system, and its headlight’s “Good” rating, the Insurance Institute for Highway Safety grants the E-Class Sedan its highest rating: “Top Pick Plus” for 2019, a rating granted to only 55 vehicles tested by the IIHS. The CT5 has not been tested, yet.
J.D. Power and Associates’ 2019 Initial Quality Study of new car owners surveyed provide the statistics that show that Mercedes vehicles are better in initial quality than Cadillac vehicles. J.D. Power ranks Mercedes 12th in initial quality. With 6 more problems per 100 vehicles, Cadillac is ranked 17th.
J.D. Power and Associates’ 2019 survey of the owners of three-year-old vehicles provides the long-term dependability statistics that show that Mercedes vehicles are more reliable than Cadillac vehicles. J.D. Power ranks Mercedes 13th in reliability, above the industry average. With 32 more problems per 100 vehicles, Cadillac is ranked 23rd.
From surveys of all its subscribers, Consumer Reports’ December 2018 Auto Issue reports that Mercedes vehicles are more reliable than Cadillac vehicles. Consumer Reports ranks Mercedes 11 places higher in reliability than Cadillac.
The E 350 Sedan’s standard 2.0 turbo 4 cyl. produces 18 more horsepower (255 vs. 237) and 15 lbs.-ft. more torque (273 vs. 258) than the CT5’s standard 2.0 turbo 4 cyl. The E 450 4MATIC Sedan’s standard 3.0 turbo V6 produces 27 more horsepower (362 vs. 335) than the CT5’s optional 3.0 turbo V6.
Regenerative brakes improve the E-Class Sedan 53 AMG’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 450/AMG 53’s standard fuel tank has 3.6 gallons more fuel capacity than the CT5 (21.1 vs. 17.5 gallons).
For better stopping power the E-Class Sedan’s front brake rotors are larger than those on the CT5:
E 450 4MATIC Sedan
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 on the CT5 are solid, not vented.
The E-Class Sedan’s optional 275/35R19 rear tires provide better handling because they have a lower 35 series profile (height to width ratio) that provides a stiffer sidewall than the CT5’s optional 40 series tires.
The E-Class Sedan offers an optional 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 maneuverability, the E-Class Sedan’s turning circle is .9 feet tighter than the CT5’s (38.1 feet vs. 39 feet). The E 450 4MATIC Sedan’s turning circle is 1.7 feet tighter than the CT5 AWD’s (39 feet vs. 40.7 feet).
The E-Class Sedan has 1.1 inches more front shoulder room, 1.6 inches more rear headroom and 1.4 inches more rear shoulder room than the CT5.
The E-Class Sedan has a much larger trunk than the CT5 (13.1 vs. 11.9 cubic feet).
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 Premium Luxury/Sport, 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 fluid is standard on the E-Class Sedan to defrost the washer nozzles and quickly clear ice and frost from the windshield without scraping. The CT5 doesn’t offer heated windshield washer fluid.
The CT5 Premium Luxury/Sport’s optional cornering lamps activate a lamp on the front corner when the turn signal is activated. The E-Class Sedan’s optional adaptive cornering lights turn the actual headlight unit up to several degrees, depending on steering wheel angle and vehicle speed. This lights a significant distance into corners at any speed.
A power rear sunshade is optional in the E-Class Sedan to help block heat and glare for the rear passengers. The CT5 doesn’t offer a rear sunshade.
The E-Class Sedan offers an optional 115-volt a/c outlet on the center console, allowing you to recharge a laptop or run small household appliances without special adapters that can break or get misplaced. The CT5 doesn’t offer a house-current electrical outlet.
The Mercedes E-Class comes in coupe, convertible, sedan and station wagon bodystyles; the Cadillac CT5 isn’t available as a coupe, convertible or station wagon.
The E 450/E 53 was chosen as one of Car and Driver’s “Top Ten” for 2 of the last 2 years. The CT5 has never been a Car and Driver “Top Ten” pick.
The Mercedes E-Class outsold the Cadillac CTS/CT5 by over five to one during the 2019 model year.
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