2008 Audi Q7 vs. 2009 Cadillac STS
To start off, 2009 Cadillac STS is newer by 1 year(s). Which means there will be less support and parts availability for 2008 Audi Q7. In addition, the cost of maintenance, including insurance, on 2008 Audi Q7 would be higher. At 4,565 cc (8 cylinders), 2009 Cadillac STS is equipped with a bigger engine. In terms of performance, 2008 Audi Q7 (345 HP @ 6800 RPM) has 24 more horse power than 2009 Cadillac STS. (321 HP @ 6400 RPM). In normal driving conditions, 2008 Audi Q7 should accelerate faster than 2009 Cadillac STS. With that said, vehicle weight also plays an important factor in acceleration. 2008 Audi Q7 weights approximately 420 kg more than 2009 Cadillac STS. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
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, 2008 Audi Q7 (440 Nm @ 3500 RPM) has 13 more torque (in Nm) than 2009 Cadillac STS. (427 Nm @ 4400 RPM). This means 2008 Audi Q7 will have an easier job in driving up hills or pulling heavy equipment than 2009 Cadillac STS.
Compare all specifications:
| 2008 Audi Q7 | 2009 Cadillac STS | |
| Make | Audi | Cadillac |
| Model | Q7 | STS |
| Year Released | 2008 | 2009 |
| Body Type | SUV | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4163 cc | 4565 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 345 HP | 321 HP |
| Engine RPM | 6800 RPM | 6400 RPM |
| Torque | 440 Nm | 427 Nm |
| Torque RPM | 3500 RPM | 4400 RPM |
| Engine Bore Size | 84.5 mm | 93 mm |
| Engine Stroke Size | 92.8 mm | 84 mm |
| Fuel Type | Gasoline | Gasoline - Premium |
| Top Speed | 244 km/hour | 250 km/hour |
| Acceleration 0-100mph | 7.7 seconds | 6.2 seconds |
| Drive Type | 4WD | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 2240 kg | 1820 kg |
| Vehicle Length | 5090 mm | 4990 mm |
| Vehicle Width | 1990 mm | 1850 mm |
| Vehicle Height | 1740 mm | 1470 mm |
| Wheelbase Size | 3010 mm | 2960 mm |
| Fuel Consumption Overall | 13.6 L/100km | 16.8 L/100km |
| Fuel Tank Capacity | 100 L | 66 L |
