2009 Audi A8 vs. 2011 Cadillac STS
To start off, 2011 Cadillac STS is newer by 2 year(s). Which means there will be less support and parts availability for 2009 Audi A8. In addition, the cost of maintenance, including insurance, on 2009 Audi A8 would be higher. At 3,600 cc (6 cylinders), 2011 Cadillac STS is equipped with a bigger engine. In terms of performance, 2011 Cadillac STS (302 HP @ 6300 RPM) has 72 more horse power than 2009 Audi A8. (230 HP @ 4000 RPM) In normal driving conditions, 2011 Cadillac STS should accelerate faster than 2009 Audi A8. With that said, vehicle weight also plays an important factor in acceleration. 2011 Cadillac STS weights approximately 872 kg more than 2009 Audi A8. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2009 Audi A8 is four wheel drive (4WD), it will have significant more traction and grip than 2011 Cadillac STS. In wet, icy, snow, or gravel driving conditions, 2009 Audi A8 will offer significantly more control. 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 Audi A8 (450 Nm @ 1400 RPM) has 82 more torque (in Nm) than 2011 Cadillac STS. (368 Nm @ 5200 RPM). This means 2009 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 2011 Cadillac STS.
Compare all specifications:
| 2009 Audi A8 | 2011 Cadillac STS | |
| Make | Audi | Cadillac |
| Model | A8 | STS |
| Year Released | 2009 | 2011 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2965 cc | 3600 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 230 HP | 302 HP |
| Engine RPM | 4000 RPM | 6300 RPM |
| Torque | 450 Nm | 368 Nm |
| Torque RPM | 1400 RPM | 5200 RPM |
| Fuel Type | Diesel | Gasoline |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 930 kg | 1802 kg |
| Vehicle Length | 5190 mm | 4996 mm |
| Vehicle Width | 1900 mm | 1844 mm |
| Vehicle Height | 1450 mm | 1463 mm |
| Wheelbase Size | 3080 mm | 2957 mm |
| Fuel Tank Capacity | 90 L | 64 L |
