Cadillac CT4 vs Subaru WRX STI
Side-by-side comparison from manufacturer specifications, NHTSA safety data, and live dealer listings.
Vehicles
Vehicles
2021 Subaru WRX STI
Overview
| Spec | Cadillac CT4Luxury | Subaru WRX STISTI |
|---|---|---|
| Selected trim | Luxury | STI |
| Body style | Sedan | Sedan |
| Drivetrain | rear wheel drive | all wheel drive |
| Fuel type | premium unleaded (recommended) | premium unleaded (required) |
| Transmission | 8-speed shiftable automatic | 6-speed manual |
| Engine type | gas | gas |
| Model year | 2026 | 2021 |
Pricing & market
| Spec | Cadillac CT4Luxury | Subaru WRX STISTI |
|---|---|---|
| MSRP | $36,000 (best) | $37,245 |
| For sale now | 0 | 0 |
Fuel economy & range
| Spec | Cadillac CT4Luxury | Subaru WRX STISTI |
|---|---|---|
| Combined MPG | 26 MPG (best) | 18 MPG |
| City MPG | 22 MPG (best) | 16 MPG |
| Highway MPG | 32 MPG (best) | 22 MPG |
| Fuel tank | 17 gal (best) | 15.9 gal |
Performance
| Spec | Cadillac CT4Luxury | Subaru WRX STISTI |
|---|---|---|
| Horsepower | 237 hp | 310 hp (best) |
| Torque | 258 lb-ft | 290 lb-ft (best) |
| Engine size | 2 L | 2.5 L (best) |
| Cylinders | I4 | flat 4 |
Size & capability
| Spec | Cadillac CT4Luxury | Subaru WRX STISTI |
|---|---|---|
| Seating | 5 seats | 5 seats |
| Doors | 4 | 4 |
| Cargo volume | 10.7 cu ft | 12 cu ft (best) |
| Curb weight | 3,422 lbs (best) | 3,450 lbs |
| Ground clearance | — | 4.9 in (best) |
| Wheelbase | 109 in (best) | 104.3 in |
| Length | 187.2 in (best) | 180.9 in |
| Width | 71.4 in (best) | 70.7 in |
| Height | 56 in | 58.1 in (best) |
Safety & recalls
| Spec | Cadillac CT4Luxury | Subaru WRX STISTI |
|---|---|---|
| NHTSA overall | Not Rated | — |
| Frontal crash (driver) | Not Rated | — |
| Frontal crash (passenger) | Not Rated | — |
| Side crash (driver) | Not Rated | — |
| Side crash (passenger) | Not Rated | — |
| Side pole | Not Rated | — |
| Rollover | Not Rated | — |
| Open recalls (YMM scope) | None reported | None reported |
Highlighted values indicate the better figure for that spec when a clear winner exists. Specs reflect the selected trim for each vehicle. Drag a vehicle header to reorder columns. MSRP and specifications are manufacturer data; listing prices and inventory come from live dealer listings. Safety ratings are from NHTSA.
Trim overview
All available trims with MSRP. The trim selected above is highlighted; comparison specs use that selection.
| Trim | Cadillac CT4 | Subaru WRX STI |
|---|---|---|
| 1 | Luxury $36,000 MSRP(Currently comparing) | STI $37,245 MSRP(Currently comparing) |
| 2 | Premium Luxury $40,400 MSRP | STI Limited $41,945 MSRP |
| 3 | Sport $44,400 MSRP | STI Limited $41,945 MSRP |
| 4 | V $50,600 MSRP | — |
| 5 | V Blackwing $63,600 MSRP | — |
Cadillac CT4 vs Subaru WRX STI FAQ
- Which is better: 2026 Cadillac CT4 or 2021 Subaru WRX STI?
- It depends on priorities. OpenDealer compares 2026 Cadillac CT4 vs 2021 Subaru WRX STI on MSRP, fuel economy, horsepower, seating, towing, NHTSA safety ratings, and live market prices so you can weigh the tradeoffs.
- Which costs less: 2026 Cadillac CT4 or 2021 Subaru WRX STI?
- Based on starting MSRP, the 2026 Cadillac CT4 starts lower at $36,000.
- Which has better startingMsrp: 2026 Cadillac CT4 or 2021 Subaru WRX STI?
- The 2026 Cadillac CT4 leads on startingMsrp in this comparison (36,000).
- Which has better combinedMpg: 2026 Cadillac CT4 or 2021 Subaru WRX STI?
- The 2026 Cadillac CT4 leads on combinedMpg in this comparison (26).
- Which has better horsepower: 2026 Cadillac CT4 or 2021 Subaru WRX STI?
- The 2026 Cadillac CT4 leads on horsepower in this comparison (472).
- How do the NHTSA safety ratings compare for 2026 Cadillac CT4 vs 2021 Subaru WRX STI?
- NHTSA overall crash-test ratings in this comparison: Cadillac CT4 (Not Rated/5 NHTSA overall).