2005 Audi S8 vs. 2008 Cadillac STS
To start off, 2008 Cadillac STS is newer by 3 year(s). Which means there will be less support and parts availability for 2005 Audi S8. In addition, the cost of maintenance, including insurance, on 2005 Audi S8 would be higher. At 4,172 cc (8 cylinders), 2005 Audi S8 is equipped with a bigger engine. In terms of performance, 2008 Cadillac STS (302 HP @ 6300 RPM) has 55 more horse power than 2005 Audi S8. (247 HP @ 4000 RPM) In normal driving conditions, 2008 Cadillac STS should accelerate faster than 2005 Audi S8. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi S8 weights approximately 210 kg more than 2008 Cadillac STS.
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, 2005 Audi S8 (450 Nm @ 3400 RPM) has 81 more torque (in Nm) than 2008 Cadillac STS. (369 Nm @ 5200 RPM). This means 2005 Audi S8 will have an easier job in driving up hills or pulling heavy equipment than 2008 Cadillac STS.
Compare all specifications:
| 2005 Audi S8 | 2008 Cadillac STS | |
| Make | Audi | Cadillac |
| Model | S8 | STS |
| Year Released | 2005 | 2008 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4172 cc | 3564 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 247 HP | 302 HP |
| Engine RPM | 4000 RPM | 6300 RPM |
| Torque | 450 Nm | 369 Nm |
| Torque RPM | 3400 RPM | 5200 RPM |
| Drive Type | AWD | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1770 kg | 1560 kg |
| Wheelbase Size | 2290 mm | 2960 mm |
| Fuel Tank Capacity | 90 L | 64 L |
