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The CLS’ 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 CLS and the CT5 have standard driver and passenger frontal airbags, front side-impact airbags, driver and front passenger 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 all wheel drive, lane departure warning systems, around view monitors and rear cross-path warning.
The Mercedes CLS weighs 474 to 595 pounds more than the Cadillac CT5. The NHTSA advises that heavier cars are much safer in collisions than their significantly lighter counterparts.
J.D. Power and Associates rated the CLS first among midsize premium cars in their 2019 Initial Quality Study. The CT5 isn’t in the top three in its category.
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 CLS’ 3.0 turbo 6 cyl. hybrid produces 125 more horsepower (362 vs. 237) and 111 lbs.-ft. more torque (369 vs. 258) than the CT5’s standard 2.0 turbo 4 cyl. The CLS’ 3.0 turbo 6 cyl. hybrid produces 27 more horsepower (362 vs. 335) than the CT5’s optional 3.0 turbo V6.
Regenerative brakes improve the CLS’ fuel efficiency by converting inertia back into energy instead of wasting it. The CT5 doesn’t offer a regenerative braking system.
The CLS has 3.6 gallons more fuel capacity than the CT5 (21.1 vs. 17.5 gallons), for longer range between fill-ups.
For better stopping power the CLS’ brake rotors are larger than those on the CT5:
The CLS’ 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.
For better traction and acceleration, the CLS has larger rear tires than the CT5 (275/35R19 vs. 245/45R18).
The CLS’ standard 245/40R19 front and 275/35R19 rear tires provide better handling because they have a lower 40 series front and 35 series rear profile (height to width ratio) that provides a stiffer sidewall than the CT5’s standard 45 series tires. The CLS’ optional 245/35R20 front and 275/30R20 rear tires have a lower 35 series front and 30 series rear profile than the CT5’s optional 40 series tires.
For better ride, handling and brake cooling the CLS has standard 19-inch wheels. Smaller 18-inch wheels are standard on the CT5. The CLS’ optional 20-inch wheels are larger than the 19-inch wheels optional on the CT5.
The CLS 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 CLS has a standard automatic front and rear load leveling suspension to keep ride height level with a heavy load or when towing. The CLS’ 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 CLS’ 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 CLS’ turning circle is .9 feet tighter than the CT5’s (38.1 feet vs. 39 feet). The CLS’ turning circle is 2.6 feet tighter than the CT5 AWD’s (38.1 feet vs. 40.7 feet).
The CLS has 1.1 inches more front shoulder room and .8 inches more rear shoulder room than the CT5.
With its sedan body style, valet key, locking rear seatbacks and remote trunk release lockout, the CLS 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 CLS 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 CLS 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.
The CT5 Premium Luxury/Sport’s optional cornering lamps activate a lamp on the front corner when the turn signal is activated. The CLS’ 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 CLS to help block heat and glare for the rear passengers. The CT5 doesn’t offer a rear sunshade.
The CLS 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.
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