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For enhanced safety, the front and rear seat shoulder belts of the Rolls-Royce Ghost 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 CT6 doesn’t offer pretensioners for the rear seat belts.
Both the Ghost and CT6 have child safety locks to prevent children from opening the rear doors. The Ghost has power child safety locks, allowing the driver to activate and deactivate them from the driver's seat and to know when they're engaged. The CT6’s child locks have to be individually engaged at each rear door with a manual switch. The driver can’t know the status of the locks without opening the doors and checking them.
The Ghost has standard PostCrash, which automatically apply the brakes in the event of a crash to help prevent secondary collisions and prevent further injuries. The CT6 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.
The Ghost’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 CT6 doesn’t offer a driver alert monitor.
Both the Ghost and the CT6 have standard driver and passenger frontal airbags, front side-impact airbags, driver and front passenger knee airbags, side-impact head airbags, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, daytime running lights, rearview cameras, available collision warning systems, night vision systems, lane departure warning systems and around view monitors.
The Rolls-Royce Ghost weighs 734 to 1602 pounds more than the Cadillac CT6. The NHTSA advises that heavier cars are much safer in collisions than their significantly lighter counterparts.
The Ghost comes with a full 4-year/unlimited-mile basic warranty, which covers the entire car and includes 24-hour roadside assistance. The CT6’s 4-year/50,000-mile basic warranty expires sooner.
Rolls-Royce pays for scheduled maintenance on the Ghost for 4 years and unlimited miles. Rolls-Royce will pay for oil changes, lubrication and any other required maintenance. Cadillac only pays for the first scheduled maintenance visit on the CT6.
The Ghost’s standard 6.6 turbo V12 produces 228 more horsepower (563 vs. 335) and 320 lbs.-ft. more torque (605 vs. 285) than the CT6’s standard 3.6 DOHC V6. The Ghost’s 6.6 turbo V12 produces 63 more horsepower (563 vs. 500) and 31 lbs.-ft. more torque (605 vs. 574) than the CT6 Platinum’s standard 4.2 turbo V8. The Ghost Black Badge’s standard 6.6 turbo V12 produces 103 more horsepower (603 vs. 500) and 46 lbs.-ft. more torque (620 vs. 574) than the CT6 Platinum’s standard 4.2 turbo V8.
The Ghost has 2.6 gallons more fuel capacity than the CT6 (21.8 vs. 19.2 gallons), for longer range between fill-ups.
For better stopping power the Ghost’s brake rotors are larger than those on the CT6:
For better traction, the Ghost has larger standard tires than the CT6 (255/50R19 vs. 245/45R19). The Ghost’s tires are larger than the largest tires available on the CT6 (F:255/40R21 & R:285/35R21 vs. 245/45R19).
The Ghost’s 285/35R21 rear tires provide better handling because they have a lower 35 series profile (height to width ratio) that provides a stiffer sidewall than the CT6 Premium Luxury/Platinum’s 40 series tires.
For better ride, handling and brake cooling the Ghost has standard 21-inch wheels. The CT6’s largest wheels are only 20-inches.
Changing a flat tire near traffic can be dangerous and inconvenient. The run-flat tires standard on the Ghost can be driven up to 50 miles without any air pressure, allowing you to drive to a service station for a repair. The CT6 doesn’t offer run-flat tires.
The Ghost has active sway bars, which help keep it flat and controlled during cornering, but disconnect at lower speeds to smooth the ride and offer greater off-road suspension articulation. This helps keep the tires glued to the road on-road and off. The CT6 doesn’t offer an active sway bar system.
The front and rear suspension of the Ghost uses air springs for a smoother, controlled ride than the CT6, which uses coil springs. Air springs maintain proper ride height and ride more smoothly.
The Ghost offers an available adjustable active suspension system, which counteracts cornering forces actively, limiting body roll and improving handling and stability. Cadillac doesn’t offer an active suspension on the CT6.
The Ghost has a standard automatic front and rear load leveling suspension to keep ride height level with a heavy load or when towing. The CT6 doesn’t offer a load leveling suspension.
For a smoother ride and more stable handling, the Ghost’s wheelbase is 7.3 inches longer than on the CT6 (129.7 inches vs. 122.4 inches). The Ghost Extended Wheelbase’s wheelbase is 14 inches longer than on the CT6 (136.4 inches vs. 122.4 inches).
For better handling and stability, the track (width between the wheels) on the Ghost is .5 inches wider in the front and 1.4 inches wider in the rear than on the CT6.
The Ghost’s front to rear weight distribution is more even (51.2% to 48.8%) than the CT6’s (52.5% to 47.5%). This gives the Ghost more stable handling and braking.
The Ghost has .4 inches more front headroom, 1.1 inches more front shoulder room, 1 inch more rear headroom and 1.9 inches more rear legroom than the CT6.
The Ghost has a much larger trunk than the CT6 (17.3 vs. 15.8 cubic feet).
Heated windshield washer nozzles are standard on the Ghost to prevent washer fluid and nozzles from freezing and help continue to keep the windshield clear in sub-freezing temperatures. The CT6 doesn’t offer heated windshield washer nozzles.
In poor weather, headlights can lose their effectiveness as grime builds up on their lenses. This can reduce visibility without the driver realizing. The Ghost has standard headlight washers to keep headlight output high. The CT6 doesn’t offer headlight washers.
The CT6 Premium Luxury/Platinum’s cornering lamps activate a lamp on the front corner when the turn signal is activated. The Ghost’s standard 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.
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