2006 Audi A8 vs. 2008 Cadillac STS
To start off, 2008 Cadillac STS is newer by 2 year(s). Which means there will be less support and parts availability for 2006 Audi A8. In addition, the cost of maintenance, including insurance, on 2006 Audi A8 would be higher. At 4,376 cc (8 cylinders), 2008 Cadillac STS is equipped with a bigger engine. In terms of performance, 2008 Cadillac STS (469 HP @ 6400 RPM) has 134 more horse power than 2006 Audi A8. (335 HP @ 6500 RPM) In normal driving conditions, 2008 Cadillac STS should accelerate faster than 2006 Audi A8. With that said, vehicle weight also plays an important factor in acceleration. 2008 Cadillac STS weights approximately 285 kg more than 2006 Audi A8. 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 Cadillac STS (595 Nm @ 3900 RPM) has 165 more torque (in Nm) than 2006 Audi A8. (430 Nm @ 3500 RPM). This means 2008 Cadillac STS will have an easier job in driving up hills or pulling heavy equipment than 2006 Audi A8.
Compare all specifications:
| 2006 Audi A8 | 2008 Cadillac STS | |
| Make | Audi | Cadillac |
| Model | A8 | STS |
| Year Released | 2006 | 2008 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4179 cc | 4376 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 335 HP | 469 HP |
| Engine RPM | 6500 RPM | 6400 RPM |
| Torque | 430 Nm | 595 Nm |
| Torque RPM | 3500 RPM | 3900 RPM |
| Drive Type | 4WD | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1275 kg | 1560 kg |
| Vehicle Length | 5200 mm | 5030 mm |
| Vehicle Width | 1900 mm | 1850 mm |
| Vehicle Height | 1460 mm | 1480 mm |
| Wheelbase Size | 3080 mm | 2960 mm |
| Fuel Consumption | 9.8 L/100km | 12.4 L/100km |
| Fuel Consumption City | 13.8 L/100km | 18.1 L/100km |
| Fuel Consumption Overall | 11.8 L/100km | 15.7 L/100km |
| Fuel Tank Capacity | 90 L | 64 L |
