2005 Audi A8 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 A8. In addition, the cost of maintenance, including insurance, on 2005 Audi A8 would be higher. At 4,565 cc (8 cylinders), 2008 Cadillac STS is equipped with a bigger engine. In terms of performance, 2005 Audi A8 (335 HP @ 4000 RPM) has 14 more horse power than 2008 Cadillac STS. (321 HP @ 6400 RPM). In normal driving conditions, 2005 Audi A8 should accelerate faster than 2008 Cadillac STS. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi A8 weights approximately 133 kg more than 2008 Cadillac STS. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 2005 Audi A8 (430 Nm) has 3 more torque (in Nm) than 2008 Cadillac STS. (427 Nm). This means 2005 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 2008 Cadillac STS.
Compare all specifications:
| 2005 Audi A8 | 2008 Cadillac STS | |
| Make | Audi | Cadillac |
| Model | A8 | STS |
| Year Released | 2005 | 2008 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4178 cc | 4565 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 335 HP | 321 HP |
| Engine RPM | 4000 RPM | 6400 RPM |
| Torque | 430 Nm | 427 Nm |
| Engine Bore Size | 85 mm | 93 mm |
| Engine Stroke Size | 93 mm | 84 mm |
| Engine Compression Ratio | 11.0:1 | 10.5:1 |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1945 kg | 1812 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 Highway | 9.8 L/100km | 9.1 L/100km |
| Fuel Consumption City | 13.1 L/100km | 13.8 L/100km |
| Fuel Consumption Overall | 11.8 L/100km | 14.5 L/100km |
| Fuel Tank Capacity | 90 L | 66 L |
