2005 Audi RS6 vs. 2007 Cadillac STS-V
To start off, 2007 Cadillac STS-V is newer by 2 year(s). Which means there will be less support and parts availability for 2005 Audi RS6. In addition, the cost of maintenance, including insurance, on 2005 Audi RS6 would be higher. At 4,376 cc (8 cylinders), 2007 Cadillac STS-V is equipped with a bigger engine. In terms of performance, 2007 Cadillac STS-V (469 HP @ 6400 RPM) has 25 more horse power than 2005 Audi RS6. (444 HP @ 5700 RPM) In normal driving conditions, 2007 Cadillac STS-V should accelerate faster than 2005 Audi RS6.
Because 2005 Audi RS6 is four wheel drive (4WD), it will have significant more traction and grip than 2007 Cadillac STS-V. In wet, icy, snow, or gravel driving conditions, 2005 Audi RS6 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, 2007 Cadillac STS-V (595 Nm @ 3900 RPM) has 35 more torque (in Nm) than 2005 Audi RS6. (560 Nm @ 1950 RPM). This means 2007 Cadillac STS-V will have an easier job in driving up hills or pulling heavy equipment than 2005 Audi RS6.
Compare all specifications:
| 2005 Audi RS6 | 2007 Cadillac STS-V | |
| Make | Audi | Cadillac |
| Model | RS6 | STS-V |
| Year Released | 2005 | 2007 |
| Body Type | Station Wagon | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4172 cc | 4376 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 444 HP | 469 HP |
| Engine RPM | 5700 RPM | 6400 RPM |
| Torque | 560 Nm | 595 Nm |
| Torque RPM | 1950 RPM | 3900 RPM |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Length | 4860 mm | 5030 mm |
| Vehicle Width | 1860 mm | 1850 mm |
| Vehicle Height | 1460 mm | 1480 mm |
| Wheelbase Size | 2850 mm | 2960 mm |
| Fuel Consumption | 10.4 L/100km | 11.2 L/100km |
| Fuel Tank Capacity | 82 L | 64 L |
