2004 Audi A8 vs. 2009 Cadillac STS
To start off, 2009 Cadillac STS is newer by 5 year(s). Which means there will be less support and parts availability for 2004 Audi A8. In addition, the cost of maintenance, including insurance, on 2004 Audi A8 would be higher. At 4,565 cc (8 cylinders), 2009 Cadillac STS is equipped with a bigger engine. In terms of performance, 2004 Audi A8 (330 HP @ 6500 RPM) has 9 more horse power than 2009 Cadillac STS. (321 HP @ 6400 RPM). In normal driving conditions, 2004 Audi A8 should accelerate faster than 2009 Cadillac STS. With that said, vehicle weight also plays an important factor in acceleration. 2009 Cadillac STS weights approximately 44 kg more than 2004 Audi A8.
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, 2004 Audi A8 (450 Nm @ 3500 RPM) has 23 more torque (in Nm) than 2009 Cadillac STS. (427 Nm @ 4400 RPM). This means 2004 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 2009 Cadillac STS.
Compare all specifications:
| 2004 Audi A8 | 2009 Cadillac STS | |
| Make | Audi | Cadillac |
| Model | A8 | STS |
| Year Released | 2004 | 2009 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4172 cc | 4565 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 330 HP | 321 HP |
| Engine RPM | 6500 RPM | 6400 RPM |
| Torque | 450 Nm | 427 Nm |
| Torque RPM | 3500 RPM | 4400 RPM |
| Engine Bore Size | 84.5 mm | 93 mm |
| Engine Stroke Size | 93 mm | 84 mm |
| Engine Compression Ratio | 11.0:1 | 10.5:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 250 km/hour | 250 km/hour |
| Acceleration 0-100mph | 6.3 seconds | 6.2 seconds |
| Drive Type | 4WD | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1776 kg | 1820 kg |
| Vehicle Length | 5060 mm | 4990 mm |
| Vehicle Width | 1900 mm | 1850 mm |
| Vehicle Height | 1450 mm | 1470 mm |
| Wheelbase Size | 2950 mm | 2960 mm |
| Fuel Consumption Overall | 11.9 L/100km | 16.8 L/100km |
| Fuel Tank Capacity | 90 L | 66 L |
