2007 Cadillac STS vs. 2005 Audi A6
To start off, 2007 Cadillac STS is newer by 2 year(s). Which means there will be less support and parts availability for 2005 Audi A6. In addition, the cost of maintenance, including insurance, on 2005 Audi A6 would be higher. At 4,565 cc (8 cylinders), 2007 Cadillac STS is equipped with a bigger engine. In terms of performance, 2007 Cadillac STS (321 HP @ 6400 RPM) has 153 more horse power than 2005 Audi A6. (168 HP @ 6000 RPM). In normal driving conditions, 2007 Cadillac STS should accelerate faster than 2005 Audi A6. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi A6 weights approximately 5 kg more than 2007 Cadillac STS.
Because 2005 Audi A6 is four wheel drive (4WD), it will have significant more traction and grip than 2007 Cadillac STS. In wet, icy, snow, or gravel driving conditions, 2005 Audi A6 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 (427 Nm @ 4400 RPM) has 197 more torque (in Nm) than 2005 Audi A6. (230 Nm @ 3200 RPM). This means 2007 Cadillac STS will have an easier job in driving up hills or pulling heavy equipment than 2005 Audi A6.
Compare all specifications:
| 2007 Cadillac STS | 2005 Audi A6 | |
| Make | Cadillac | Audi |
| Model | STS | A6 |
| Year Released | 2007 | 2005 |
| Body Type | Sedan | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 4565 cc | 2393 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 5 valves |
| Horse Power | 321 HP | 168 HP |
| Engine RPM | 6400 RPM | 6000 RPM |
| Torque | 427 Nm | 230 Nm |
| Torque RPM | 4400 RPM | 3200 RPM |
| Engine Bore Size | 93 mm | 81 mm |
| Engine Stroke Size | 84 mm | 77.4 mm |
| Engine Compression Ratio | 10.5:1 | 11.0:1 |
| Drive Type | Front | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1635 kg | 1640 kg |
| Vehicle Length | 4990 mm | 4800 mm |
| Vehicle Width | 1850 mm | 1820 mm |
| Vehicle Height | 1470 mm | 1460 mm |
| Wheelbase Size | 2960 mm | 2660 mm |
| Fuel Consumption Overall | 11.8 L/100km | 10.8 L/100km |
| Fuel Tank Capacity | 64 L | 70 L |
