Compare the2025 BMW 4 Series Gran CoupeVS 2025 Cadillac CT5

The 4 Series Gran Coupe’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 4 Series Gran Coupe’s standard pretensioning seatbelts also sense rear collisions and remove slack from the front seatbelts to help protect the occupants from whiplash and other injuries. The CT5 doesn’t offer a whiplash protection system.

The 4 Series Gran Coupe has a standard PostCrash iBrake, 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.

Both the 4 Series Gran Coupe and the CT5 have standard driver and passenger frontal airbags, front side-impact airbags, driver and front passenger knee airbags, side-impact head airbags, front seatbelt pretensioners, plastic fuel tanks, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, crash mitigating brakes, daytime running lights, lane departure warning systems, blind spot warning systems, rearview cameras, rear cross-path warning, driver alert monitors, available all wheel drive and around view monitors.

The 4 Series Gran Coupe’s corrosion warranty is 6 years and unlimited miles longer than the CT5’s (12/unlimited vs. 6/100,000).

BMW pays for scheduled maintenance on the 4 Series Gran Coupe for 3 years and 36,000 miles. BMW will pay for oil changes, tire rotations, air filter replacements, cabin filter replacement, brake fluid replacement, inspections, and any other required maintenance. Cadillac only pays for the first scheduled maintenance visit on the CT5.

A reliable vehicle saves its owner time, money and trouble. Nobody wants to be stranded or have to be without a vehicle while it’s being repaired. Consumer Reports rates the 4 Series Gran Coupe’s reliability 18 points higher than the CT5.

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

J.D. Power and Associates’ 2024 survey of the owners of three-year-old vehicles provides the long-term dependability statistics that show that BMW vehicles are more reliable than Cadillac With 6 fewer problems per 100 vehicles in the first three years of ownership, J.D. Power ranks BMW higher than Cadillac.

From surveys of all its subscribers, Consumer Reports’ January 2024 Auto Issue reports that BMW vehicles are more reliable than Cadillac vehicles. Consumer Reports ranks BMW 7 places higher in reliability than Cadillac.

The 430i Gran Coupe’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 M440i Coupe’s standard 3.0 turbo 6-cylinder hybrid produces 51 more horsepower (386 vs. 335) than the CT5’s optional 3.0 turbo V6.

On the EPA test cycle the 4 Series Gran Coupe gets better mileage than the CT5:

Regenerative brakes improve the 4 Series Gran Coupe’s fuel efficiency by converting inertia back into energy instead of wasting it. The CT5 doesn’t offer a regenerative braking system.

To lower fuel costs and make buying fuel easier, the BMW 4 Series Gran Coupe uses regular unleaded gasoline (premium recommended for maximum performance). The CT5 requires premium, which can cost on average about 84.9 cents more per gallon.

The 4 Series Gran Coupe 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 BMW 4 Series Gran Coupe higher (6 to 7 out of 10) than the Cadillac CT5 (4 to 6). This means the 4 Series Gran Coupe produces up to 13.2 pounds less smog-producing pollutants than the CT5 every 15,000 miles.

The 4 Series Gran Coupe’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 4 Series Gran Coupe’s brake rotors are larger than those on the CT5:

The 4 Series Gran Coupe’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 4 Series Gran Coupe 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 4 Series Gran Coupe is 5.3 inches shorter than the CT5, making the 4 Series Gran Coupe easier to handle, maneuver and park in tight spaces.

To make loading and unloading groceries and cargo easier, especially for short adults, the 4 Series Gran Coupe has a standard power liftgate, which opens and closes automatically by pressing a button or just by waving your foot, completely leaving your hands free. The CT5 doesn’t offer a power trunk, so its trunk has to be closed manually.

The BMW 4 Series Gran Coupe 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 4 Series Gran Coupe and the CT5 have standard heated front seats. The 4 Series Gran Coupe 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 BMW 4 Series comes in coupe, convertible and four door hatchback bodystyles; the Cadillac CT5 isn’t available as a coupe or convertible.

The 4 Series Gran Coupe will cost the buyer less in the long run because of its superior resale value. The IntelliChoice estimates that the 4 Series Gran Coupe will retain 52.7% to 54.31% of its original price after five years, while the CT5 only retains 49.33% to 50.43%.

The BMW 4 Series outsold the Cadillac CT5 by almost three to one during 2023.