2007 Cadillac SRX vs. 2009 Cadillac STS
To start off, 2009 Cadillac STS is newer by 2 year(s). Which means there will be less support and parts availability for 2007 Cadillac SRX. In addition, the cost of maintenance, including insurance, on 2007 Cadillac SRX would be higher. At 4,565 cc (8 cylinders), 2009 Cadillac STS is equipped with a bigger engine. In terms of performance, 2009 Cadillac STS (321 HP @ 6400 RPM) has 66 more horse power than 2007 Cadillac SRX. (255 HP @ 6500 RPM) In normal driving conditions, 2009 Cadillac STS should accelerate faster than 2007 Cadillac SRX. With that said, vehicle weight also plays an important factor in acceleration. 2007 Cadillac SRX weights approximately 69 kg more than 2009 Cadillac STS.
Both vehicles are four wheel drive (4WD) - it offers better handling, traction, and control in all driving conditions compared with front wheel drive or rear wheel drive vehicles. With that said, do keep in mind that many other factors such as speed and the wear on your tires can also have significant impact on traction and control. Let's talk about torque, 2009 Cadillac STS (427 Nm @ 4400 RPM) has 83 more torque (in Nm) than 2007 Cadillac SRX. (344 Nm @ 2800 RPM). This means 2009 Cadillac STS will have an easier job in driving up hills or pulling heavy equipment than 2007 Cadillac SRX.
Compare all specifications:
| 2007 Cadillac SRX | 2009 Cadillac STS | |
| Make | Cadillac | Cadillac |
| Model | SRX | STS |
| Year Released | 2007 | 2009 |
| Body Type | SUV | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3556 cc | 4565 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 255 HP | 321 HP |
| Engine RPM | 6500 RPM | 6400 RPM |
| Torque | 344 Nm | 427 Nm |
| Torque RPM | 2800 RPM | 4400 RPM |
| Engine Compression Ratio | 10.2:1 | 10.5:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Drive Type | 4WD | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1889 kg | 1820 kg |
| Vehicle Length | 4960 mm | 4990 mm |
| Vehicle Width | 1850 mm | 1850 mm |
| Vehicle Height | 1730 mm | 1470 mm |
| Wheelbase Size | 2960 mm | 2960 mm |
| Fuel Consumption Highway | 10.2 L/100km | 9.1 L/100km |
| Fuel Consumption City | 14.7 L/100km | 13.8 L/100km |
| Fuel Consumption Overall | 12.4 L/100km | 16.8 L/100km |
| Fuel Tank Capacity | 76 L | 66 L |
