2025 Lexus RC vs 2026 Cadillac CT4
Comparison Overview
The 2025 Lexus RC bursts onto the scene offering pure, sculpted coupe drama starting at $45,620, packing 241 horsepower through its rear-wheel-drive platform. Contrast this with the sharply sculpted 2026 Cadillac CT4, a sedan that blends accessibility with RWD athleticism, beginning at a compelling $35,600—a massive $10,020 saving over the Lexus. While the Lexus boasts slightly more muscle with 258 lb-ft of torque matching the Cadillac's, the CT4 edges out in efficiency with a 26 MPG combined rating versus the RC’s 25 MPG, despite both demanding premium fuel (required for the Lexus, recommended for the Cadillac). The RC is physically wider at 72.4 inches compared to the CT4's 71.4 inches, yet both offer minimal storage at around 10.4 to 10.7 cubic feet. This comparison pits Japanese luxury coupe elegance against American sporting sedan practicality.
Size Comparison
Performance
Fuel Efficiency
Full Specifications
Our Verdicts
2026 Cadillac CT4
The Cadillac CT4 wins for commuters due to its superior fuel economy, achieving 26 MPG combined versus the Lexus RC's 25 MPG.
2026 Cadillac CT4
As the CT4 is a sedan with slightly more cargo room (10.7 cu ft) and lower running costs, it marginally suits family duty better than the two-door RC.
2025 Lexus RC
The Lexus RC secures the enthusiast victory by offering a dedicated coupe design focused purely on driving dynamics over sedan practicality.
2026 Cadillac CT4
The Cadillac CT4 offers comparable power for $10,020 less than the Lexus RC, making it the undeniable value champion.
Choose the Lexus RC if...
- You prioritize the dramatic silhouette and exclusivity of a dedicated two-door coupe body style.
- You desire the peak performance specification, receiving 241 horsepower standard.
- You prefer a vehicle where premium fuel is mandated, suggesting a more aggressive factory tuning profile.
Choose the Cadillac CT4 if...
- Saving $10,020 on the initial purchase price is a primary concern, as the CT4 starts at $35,600.
- You require marginally better efficiency, seeing 26 combined MPG versus the RC's 25 MPG.
- You need the inherent practicality of four doors, despite its smaller 187.2-inch length compared to the RC.
Key Dimensions
| Dimension | Lexus RC | Cadillac CT4 |
|---|---|---|
| Length | 185.0" | 187.2" |
| Width | 72.4" | 71.4" |
| Height | 54.9" | 56.0" |
| Wheelbase | 107.5" | 109.0" |
Features Comparison
Safety
| Feature | Lexus | Cadillac |
|---|---|---|
| Blind Spot Monitor | ✓ | ✓ |
| Lane Departure Warning | ✓ | ✓ |
| Lane Keeping Assist System | ✓ | ✓ |
| Rear Cross Traffic 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 | ✓ | ✓ |
| Anti-lock Brakes (ABS) | 4-Wheel | 4-Wheel |
| Front Ventilated Disc Brakes | ✓ | ✓ |
| Rear Ventilated Disc Brakes | ✓ | ✓ |
| Brake Assist | ✓ | ✓ |
| Tire Pressure Monitoring System | ✓ | ✓ |
| Automatic Headlights | ✓ | ✓ |
| Headlight Delay-Off | ✓ | ✓ |
| LED Headlights | ✓ | ✓ |
| Daytime Running Lights | ✓ | ✓ |
| Integrated Turn Signal Mirrors | ✓ | ✓ |
| Front Headrests | 2 | 2 |
| Front Height Adjustable Headrests | ✓ | ✓ |
| Rear Headrests | 2 | 2 |
| Rear Height Adjustable Headrests | ✓ | ✓ |
| Anti-Theft Alarm System (Remote) | ✓ | ✓ |
| Engine Immobilizer | ✓ | ✓ |
| Dual Rear Side-Mounted Airbags | — | ✓ |
| Rear Door Child Safety Locks | — | ✓ |
| Rear Center 3-Point Seatbelt | — | ✓ |
Engine
| Feature | Lexus | Cadillac |
|---|---|---|
| Base Engine Displacement | 2.0 L | 2.0 L |
| Number of Cylinders | inline 4 | inline 4 |
| Base Engine Type | gas | gas |
| Horsepower | 241 hp @ 5200 rpm | 237 hp @ 5000 rpm |
| Torque | 258 lb-ft @ 1650 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 | Lexus | Cadillac |
|---|---|---|
| Transmission Type | 8-speed shiftable automatic | 8-speed shiftable automatic |
| Drivetrain Type | rear wheel drive | rear wheel drive |
Fuel
| Feature | Lexus | Cadillac |
|---|---|---|
| Fuel Type | premium unleaded (required) | premium unleaded (recommended) |
| EPA Fuel Economy (City/Highway) | 21/31 MPG | 22/32 MPG |
| EPA Fuel Economy (Combined) | 25 MPG | 26 MPG |
| EPA Driving Range (City/Highway) | 367.5/542.5 mi. | 374.0/544.0 mi. |
| Fuel Tank Capacity | 17.5 gal. | 17.0 gal. |
Comfort & Convenience
| Feature | Lexus | 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 | ✓ | ✓ |
| Adaptive Cruise Control | ✓ | — |
| Front Cupholders | ✓ | ✓ |
| Front Door Pockets | ✓ | ✓ |
| Front Seatback Storage | ✓ | ✓ |
| Leather Steering Wheel | ✓ | ✓ |
| Dual Zone Climate Control | ✓ | ✓ |
| Rear Ventilation Ducts | ✓ | ✓ |
| Interior Air Filtration | ✓ | ✓ |
| Dual Vanity Mirrors | ✓ | ✓ |
| Turn Signal Indicators in Mirrors | ✓ | ✓ |
| Rear Parking Sensors | — | ✓ |
| Wireless Charging Pad | — | ✓ |
| Cruise Control | — | ✓ |
| Rear Cupholders | — | ✓ |
| Rear Door Pockets | — | ✓ |
| Heated Steering Wheel | — | ✓ |
| Sun Sensor | — | ✓ |
In Car Entertainment
| Feature | Lexus | Cadillac |
|---|---|---|
| Infotainment Display | 8.0 in | 8.0 in |
| AM/FM Stereo | ✓ | ✓ |
| Speaker System | 10 | 8 |
| Android Auto (Wired) | ✓ | — |
| Apple CarPlay (Wired) | ✓ | — |
| USB Port | ✓ | ✓ |
| USB Port with External Media Control | ✓ | ✓ |
| Satellite Radio | ✓ | ✓ |
| Satellite Radio Trial Period | 3 months | 3 months |
| Speed Sensitive Volume Control | ✓ | ✓ |
| Android Auto (Wireless) | — | ✓ |
| Apple CarPlay (Wireless) | — | ✓ |
| Auxiliary Audio Input | — | ✓ |
| Memory Card Slot | — | ✓ |
Power Feature
| Feature | Lexus | Cadillac |
|---|---|---|
| One-Touch Power Windows | 2 | 4 |
| Keyless Entry | ✓ | ✓ |
| Heated Mirrors | ✓ | ✓ |
Frontseats
| Feature | Lexus | Cadillac |
|---|---|---|
| Front Head Room | 39.0 in. | 38.3 in. |
| Front Leg Room | 45.4 in. | 42.4 in. |
| Front Shoulder Room | 54.7 in. | 55.2 in. |
| Front Hip Room | 53.9 in. | 53.0 in. |
| Seat Material: Leatherette | ✓ | ✓ |
| Front Seat Type: Bucket | ✓ | ✓ |
| Driver Seat Power Adjustments | 10-way | 8-way |
| Driver Seat Height Adjustment | ✓ | ✓ |
| Driver Seat Lumbar Support | Power | Power |
| Passenger Seat Power Adjustments | 8-way | 6-way |
| Passenger Seat Height Adjustment | ✓ | ✓ |
| Driver Seat Heating | — | Multi-level |
| Passenger Seat Heating | — | Multi-level |
Rearseats
| Feature | Lexus | Cadillac |
|---|---|---|
| Rear Head Room | 34.8 in. | 36.5 in. |
| Rear Leg Room | 27.3 in. | 33.4 in. |
| Rear Shoulder Room | 50.8 in. | 53.9 in. |
| Rear Hip Room | 44.9 in. | 52.5 in. |
| Split-Folding Rear Seatback | ✓ | ✓ |
| Folding Rear Seat Feature | — | ✓ |
| Pass-Thru Center Armrest | — | ✓ |
Tires and Wheels
| Feature | Lexus | Cadillac |
|---|---|---|
| Wheel Material | Alloy | — |
| Wheel Size | 18 x 8.0 in | — |
| Tire Type | All Season | ✓ |
| Tire Size | 235/45R18 | P225/45R17 |
| Spare Tire Type | Temporary | — |
| Spare Tire Location | Inside Mounted | — |
| Wheel Finish | — | Painted Alloy |
| Wheel Diameter | — | 17 in |
Suspension
| Feature | Lexus | Cadillac |
|---|---|---|
| Four-Wheel Independent Suspension | ✓ | ✓ |
| Front Stabilizer Bar | ✓ | ✓ |
| Rear Stabilizer Bar | ✓ | ✓ |
Warranty
| Feature | Lexus | Cadillac |
|---|---|---|
| Basic Warranty | 4 yr./ 50000 mi. | 4 yr./ 50000 mi. |
| Drivetrain Warranty | 6 yr./ 70000 mi. | 6 yr./ 70000 mi. |
| Corrosion/Rust Warranty | 6 yr./ unlimited mi. | 4 yr./ 50000 mi. |
| Roadside Assistance | 4 yr./ unlimited mi. | 6 yr./ 70000 mi. |
| Complimentary Scheduled Maintenance | 1 yr./ 10000 mi. | 1 yr./ unlimited mi. |
Frequently Asked Questions
Common questions about comparing the 2025 Lexus RC and 2026 Cadillac CT4.
What is the primary mechanical difference regarding fuel requirements?
The 2025 Lexus RC strictly requires premium unleaded fuel to maintain its performance metrics. In contrast, the 2026 Cadillac CT4 lists premium unleaded as recommended, suggesting it can operate safely on lower octanes if necessary.
How significant is the size difference between the two models?
The vehicles are similar in length, with the CT4 being 187.2 inches and the RC at 185.0 inches, but the RC is slightly wider (72.4 inches vs. 71.4 inches), reflecting its coupe stance.
Can the CT4 match the Lexus in terms of output despite its lower price?
Yes, nearly. The Lexus RC produces 241 hp and 258 lb-ft of torque, while the CT4 delivers 237 hp and matches the 258 lb-ft of torque figure.
Which vehicle offers a more practical cabin for storage?
Both offer limited space typical of performance vehicles, but the Cadillac CT4 holds a slight advantage with 10.7 cubic feet of cargo capacity, compared to the Lexus RC's 10.4 cubic feet.
Is the RWD driving experience similar in both cars?
Both models utilize an 8-speed shiftable automatic transmission powering the rear wheels, ensuring a classic, driver-focused RWD feel for performance driving.
How does the MSRP difference affect overall perceived value?
The CT4 undercuts the RC by a significant $10,020, offering nearly equivalent horsepower figures, which strongly favors the Cadillac in the metrics of overall value proposition.
More Mid-Range Sedans ($30k-$50k)
View allVehicle Details
Compare More Vehicles
Use our interactive comparison tool to compare up to 4 vehicles at once
Open Comparison Tool