Cadillac STS vs INFINITI Q45
Side-by-side comparison from manufacturer specifications, NHTSA safety data, and live dealer listings.
Vehicles
Vehicles
2006 INFINITI Q45
Overview
| Spec | Cadillac STSV6 Luxury Sport | INFINITI Q4545 Sport |
|---|---|---|
| Selected trim | V6 Luxury Sport | 45 Sport |
| Body style | Sedan | Sedan |
| Drivetrain | rear wheel drive | rear wheel drive |
| Fuel type | regular unleaded | premium unleaded (required) |
| Transmission | 6-speed shiftable automatic | 5-speed shiftable automatic |
| Engine type | gas | gas |
| Model year | 2011 | 2006 |
Pricing & market
| Spec | Cadillac STSV6 Luxury Sport | INFINITI Q4545 Sport |
|---|---|---|
| MSRP | $47,280 (best) | $58,100 |
| For sale now | 0 | 0 |
Fuel economy & range
| Spec | Cadillac STSV6 Luxury Sport | INFINITI Q4545 Sport |
|---|---|---|
| Combined MPG | 21 MPG (best) | 18 MPG |
| City MPG | 18 MPG (best) | 15 MPG |
| Highway MPG | 27 MPG (best) | 22 MPG |
| Fuel tank | 17 gal | 21.4 gal (best) |
Performance
| Spec | Cadillac STSV6 Luxury Sport | INFINITI Q4545 Sport |
|---|---|---|
| Horsepower | 302 hp | 340 hp (best) |
| Torque | 272 lb-ft | 333 lb-ft (best) |
| Engine size | 3.6 L | 4.5 L (best) |
| Cylinders | V6 | V8 |
Size & capability
| Spec | Cadillac STSV6 Luxury Sport | INFINITI Q4545 Sport |
|---|---|---|
| Seating | 5 seats | 5 seats |
| Doors | 4 | 4 |
| Cargo volume | 13.8 cu ft (best) | 13.6 cu ft |
| Towing capacity | 1,000 lbs (best) | — |
| Curb weight | 3,973 lbs (best) | 4,153 lbs |
| Ground clearance | — | 5.8 in (best) |
| Wheelbase | 116.4 in (best) | 113 in |
| Length | 196.7 in | 200.8 in (best) |
| Width | 72.6 in | 72.6 in |
| Height | 57.6 in | 58.7 in (best) |
Safety & recalls
| Spec | Cadillac STSV6 Luxury Sport | INFINITI Q4545 Sport |
|---|---|---|
| Rollover | 5 / 5 ★ (best) | — |
| Open recalls (YMM scope) | None reported (best) | 1 |
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 STS | INFINITI Q45 |
|---|---|---|
| 1 | V6 Luxury Sport $47,280 MSRP(Currently comparing) | 45 Sport $58,100 MSRP(Currently comparing) |
| 2 | V6 Luxury $50,820 MSRP | — |
| 3 | V6 Premium $56,380 MSRP | — |
Cadillac STS vs INFINITI Q45 FAQ
- Which is better: 2011 Cadillac STS or 2006 INFINITI Q45?
- It depends on priorities. OpenDealer compares 2011 Cadillac STS vs 2006 INFINITI Q45 on MSRP, fuel economy, horsepower, seating, towing, NHTSA safety ratings, and live market prices so you can weigh the tradeoffs.
- Which costs less: 2011 Cadillac STS or 2006 INFINITI Q45?
- Based on starting MSRP, the 2011 Cadillac STS starts lower at $47,280.
- Which has better startingMsrp: 2011 Cadillac STS or 2006 INFINITI Q45?
- The 2011 Cadillac STS leads on startingMsrp in this comparison (47,280).
- Which has better combinedMpg: 2011 Cadillac STS or 2006 INFINITI Q45?
- The 2011 Cadillac STS leads on combinedMpg in this comparison (21).
- Which has better horsepower: 2011 Cadillac STS or 2006 INFINITI Q45?
- The 2006 INFINITI Q45 leads on horsepower in this comparison (340).
- Which has better maxTowingLbs: 2011 Cadillac STS or 2006 INFINITI Q45?
- The 2011 Cadillac STS leads on maxTowingLbs in this comparison (1,000).