2025 BMW 4 Series Gran Coupe vs 2026 Cadillac CT4

$49,650 · Sedan

$35,600 · Sedan

Comparison Overview

The most significant numerical divergence between the 2025 BMW 4 Series Gran Coupe (car1) and the 2026 Cadillac CT4 (car2) is the $14,050 difference in starting MSRP, with the BMW beginning at $49,650 versus the Cadillac's $35,600. Performance favors the BMW, which offers 255 hp and 295 lb-ft of torque compared to the CT4's 237 hp and 258 lb-ft. Fuel economy is another key metric: car1 achieves a 30 MPG combined rating (27/35 MPG), while car2 is rated at 26 MPG combined (22/32 MPG). Furthermore, the 4 Series Gran Coupe boasts a substantially larger cargo area at 16.6 cu ft, significantly exceeding the CT4's 10.7 cu ft. Both vehicles utilize an 8-speed automatic transmission and standard rear-wheel drive architecture, but the size difference is minimal, with the BMW measuring 188.5 inches long against the CT4's 187.2 inches.

Size Comparison

Performance

Fuel Efficiency

Full Specifications

Our Verdicts

🚗 Best for Commuters

2025 BMW 4 Series Gran Coupe

The BMW 4 Series Gran Coupe offers a superior combined fuel economy rating of 30 MPG compared to the CT4's 26 MPG.

👨‍👩‍👧‍👦 Best for Families

2025 BMW 4 Series Gran Coupe

The 4 Series Gran Coupe provides 16.6 cu ft of cargo capacity, which is nearly 60% more usable space than the CT4's 10.7 cu ft.

🏎️ Best for Enthusiasts

2025 BMW 4 Series Gran Coupe

Car1 delivers a higher output with 255 horsepower and 295 lb-ft of torque over the CT4's 237 hp and 258 lb-ft.

💰 Best Value

2026 Cadillac CT4

The Cadillac CT4 offers significantly lower entry cost at $35,600 while still providing comparable RWD architecture and an 8-speed automatic transmission.

Choose the BMW 4 Series Gran Coupe if...

You prioritize powertrain performance, as the BMW offers 255 hp versus 237 hp.
You require the greater utility afforded by 16.6 cu ft of cargo space.
You insist on the slightly better highway fuel economy of 35 MPG.

Choose the Cadillac CT4 if...

Budget is paramount, given the $14,050 lower starting MSRP of $35,600.
You prefer a vehicle that only 'recommends' premium unleaded fuel rather than 'requires' it.
You are content with 26 MPG combined efficiency to save upfront costs.

Key Dimensions

Dimension	BMW 4 Series Gran Coupe	Cadillac CT4
Length	188.5"	187.2"
Width	72.9"	71.4"
Height	56.8"	56.0"
Wheelbase	112.4"	109.0"

Features Comparison

Safety

Feature	BMW	Cadillac
Blind Spot Monitor	✓	✓
Lane Departure Warning	✓	✓
Driver Attention Alert	✓	—
Pre-Collision Safety System	✓	✓
Post-Collision Safety System	✓	✓
Dual Front Side-Mounted Airbags	✓	✓
Front Head Airbags	✓	✓
Rear Head Airbags	✓	✓
Passenger Airbag Occupant Sensing Deactivation	✓	✓
Electronic Stability Control	✓	✓
Traction Control System	✓	✓
LATCH System	✓	✓
Rear Door Child Safety Locks	✓	✓
Anti-lock Brakes (ABS)	4-Wheel	4-Wheel
Brake Drying	✓	—
Front Ventilated Disc Brakes	✓	✓
Rear Ventilated Disc Brakes	✓	✓
Brake Preparation System	✓	—
Brake Assist	✓	✓
Tire Pressure Monitoring System	✓	✓
Automatic Headlights	✓	✓
Headlight Delay-Off	✓	✓
LED Headlights	✓	✓
Self-Leveling Headlights	✓	—
Daytime Running Lights	✓	✓
Integrated Turn Signal Mirrors	✓	✓
Front Headrests	2	2
Front Multi-Adjustable Headrests	✓	—
Rear Headrests	3	2
Rear Height Adjustable Headrests	✓	✓
Rear Center 3-Point Seatbelt	✓	✓
Anti-Theft Alarm System (Remote)	✓	✓
Engine Immobilizer	✓	✓
Lane Keeping Assist System	—	✓
Rear Cross Traffic Alert	—	✓
Dual Rear Side-Mounted Airbags	—	✓
Front Height Adjustable Headrests	—	✓

Engine

Feature	BMW	Cadillac
Base Engine Displacement	2.0 L	2.0 L
Number of Cylinders	inline 4	inline 4
Base Engine Type	mild hybrid	gas
Horsepower	255 hp @ 4700 rpm	237 hp @ 5000 rpm
Torque	295 lb-ft @ 1600 rpm	258 lb-ft @ 1500 rpm
Number of Valves	16	16
Camshaft Type	Double overhead cam (DOHC)	Double overhead cam (DOHC)
Variable Valve Timing	Variable	Variable
Fuel Injection Type	✓	✓
Cylinder Deactivation	—	✓

Drive Train

Feature	BMW	Cadillac
Transmission Type	8-speed shiftable automatic	8-speed shiftable automatic
Drivetrain Type	rear wheel drive	rear wheel drive

Fuel

Feature	BMW	Cadillac
Fuel Type	premium unleaded (required)	premium unleaded (recommended)
EPA Fuel Economy (City/Highway)	27/35 MPG	22/32 MPG
EPA Fuel Economy (Combined)	30 MPG	26 MPG
EPA Driving Range (City/Highway)	421.2/546.0 mi.	374.0/544.0 mi.
Fuel Tank Capacity	15.6 gal.	17.0 gal.

Comfort & Convenience

Feature	BMW	Cadillac
Push Button Start	✓	✓
Tilt and Telescopic Steering Wheel	✓	✓
Transmission Controls on Steering Wheel	✓	✓
Cruise Control on Steering Wheel	✓	✓
Audio Controls on Steering Wheel	✓	✓
Electric Power Steering	✓	✓
Rear View Camera	✓	✓
Front Parking Sensors	✓	—
Rear Parking Sensors	✓	✓
Wireless Charging Pad	✓	✓
Cruise Control	✓	✓
Universal Remote Transmitter	✓	—
Front Cupholders	✓	✓
Rear Cupholders	✓	✓
Front Door Pockets	✓	✓
Rear Door Pockets	✓	✓
Front Seatback Storage	✓	✓
Leather Steering Wheel	✓	✓
Dual Zone Climate Control	✓	✓
Rear Ventilation Ducts	✓	✓
Interior Air Filtration	✓	✓
Dual Vanity Mirrors	✓	✓
Auto-Dimming Rearview Mirror	✓	—
Turn Signal Indicators in Mirrors	✓	✓
Heated Steering Wheel	—	✓
Sun Sensor	—	✓

In Car Entertainment

Feature	BMW	Cadillac
Infotainment Display	14.9 in	8.0 in
AM/FM Stereo	✓	✓
Stereo Power	205W	—
Speaker System	10	8
Android Auto (Wired)	✓	—
Apple CarPlay (Wired)	✓	—
USB Port	✓	✓
USB Port with External Media Control	✓	✓
Satellite Radio	✓	✓
Satellite Radio Trial Period	12 months	3 months
Android Auto (Wireless)	—	✓
Apple CarPlay (Wireless)	—	✓
Auxiliary Audio Input	—	✓
Memory Card Slot	—	✓
Speed Sensitive Volume Control	—	✓

Power Feature

Feature	BMW	Cadillac
One-Touch Power Windows	4	4
Moonroof Type	1st Row Power Glass Extended	—
Keyless Entry	✓	✓
Reverse Tilt Dual Mirrors	✓	—
Heated Mirrors	✓	✓

Frontseats

Feature	BMW	Cadillac
Front Head Room	38.6 in.	38.3 in.
Front Leg Room	41.5 in.	42.4 in.
Front Shoulder Room	55.2 in.	55.2 in.
Seat Material: Leatherette	✓	✓
Front Seat Type: Sport	✓	—
Driver Seat Manual Adjustments	2-way	—
Driver Seat Height Adjustment	✓	✓
Driver Seat Thigh Extension	✓	—
Driver Seat Memory Settings	2	—
Passenger Seat Manual Adjustments	2-way	—
Passenger Seat Height Adjustment	✓	✓
Passenger Seat Thigh Extension	✓	—
Driver Seat Heating	Multi-level	Multi-level
Passenger Seat Heating	Multi-level	Multi-level
Front Hip Room	—	53.0 in.
Front Seat Type: Bucket	—	✓
Driver Seat Power Adjustments	—	8-way
Driver Seat Lumbar Support	—	Power
Passenger Seat Power Adjustments	—	6-way

Rearseats

Feature	BMW	Cadillac
Rear Head Room	36.6 in.	36.5 in.
Rear Leg Room	34.9 in.	33.4 in.
Rear Shoulder Room	54.3 in.	53.9 in.
Split-Folding Rear Seatback	✓	✓
Folding Rear Seat Feature	✓	✓
Pass-Thru Center Armrest	✓	✓
Rear Hip Room	—	52.5 in.

Tires and Wheels

Feature	BMW	Cadillac
Wheel Finish	Painted Alloy	Painted Alloy
Wheel Size	18 x 8.5 in	—
Tire Size	245/45R H	P225/45R17
Run Flat Tires	✓	—
Wheel Diameter	—	17 in
Tire Type	—	✓

Suspension

Feature	BMW	Cadillac
Four-Wheel Independent Suspension	✓	✓
Front Stabilizer Bar	✓	✓
Rear Stabilizer Bar	✓	✓

Warranty

Feature	BMW	Cadillac
Basic Warranty	4 yr./ 50000 mi.	4 yr./ 50000 mi.
Drivetrain Warranty	4 yr./ 50000 mi.	6 yr./ 70000 mi.
Corrosion/Rust Warranty	12 yr./ unlimited mi.	4 yr./ 50000 mi.
Roadside Assistance	4 yr./ unlimited mi.	6 yr./ 70000 mi.
Complimentary Scheduled Maintenance	3 yr./ 36000 mi.	1 yr./ unlimited mi.

Frequently Asked Questions

Common questions about comparing the 2025 BMW 4 Series Gran Coupe and 2026 Cadillac CT4.

What is the primary functional difference between the 2025 BMW 4 Series Gran Coupe and the 2026 Cadillac CT4?

Functionally, the BMW offers significantly better cargo utility, boasting 16.6 cu ft compared to the Cadillac's 10.7 cu ft. Additionally, the BMW requires premium fuel, whereas the CT4 only recommends it.

How much more powerful is the BMW 4 Series Gran Coupe compared to the Cadillac CT4?

The BMW 4 Series Gran Coupe generates 255 hp and 295 lb-ft of torque from its powertrain. This surpasses the Cadillac CT4's output of 237 hp and 258 lb-ft of torque.

Is the fuel economy difference substantial enough to justify the BMW's higher price?

The BMW achieves a 30 MPG combined rating versus the Cadillac's 26 MPG combined rating, a 4 MPG advantage. While this saves on fuel, it does not immediately offset the $14,050 initial price gap.

Are the drivetrains fundamentally different between these two RWD sedans?

No, both vehicles employ a rear-wheel drive architecture paired with an 8-speed shiftable automatic transmission, indicating a similar base mechanical layout.

Which vehicle has the larger exterior footprint?

The 2025 BMW 4 Series Gran Coupe is slightly larger overall, measuring 188.5 inches in length and 72.9 inches in width, compared to the 2026 Cadillac CT4's 187.2 inches in length and 71.4 inches in width.

How do the fuel requirements compare for these two premium compact sedans?

The BMW 4 Series Gran Coupe explicitly requires premium unleaded fuel for its higher-output engine. Conversely, the Cadillac CT4 only recommends premium unleaded, potentially allowing the use of lower octane fuel.