2006 Audi A6 vs. 2007 Cadillac STS
To start off, 2007 Cadillac STS is newer by 1 year(s). Which means there will be less support and parts availability for 2006 Audi A6. In addition, the cost of maintenance, including insurance, on 2006 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 69 more horse power than 2006 Audi A6. (252 HP @ 6500 RPM) In normal driving conditions, 2007 Cadillac STS should accelerate faster than 2006 Audi A6. With that said, vehicle weight also plays an important factor in acceleration. 2006 Audi A6 weights approximately 45 kg more than 2007 Cadillac STS.
Because 2006 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, 2006 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 97 more torque (in Nm) than 2006 Audi A6. (330 Nm @ 3250 RPM). This means 2007 Cadillac STS will have an easier job in driving up hills or pulling heavy equipment than 2006 Audi A6.
Compare all specifications:
| 2006 Audi A6 | 2007 Cadillac STS | |
| Make | Audi | Cadillac |
| Model | A6 | STS |
| Year Released | 2006 | 2007 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3123 cc | 4565 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 252 HP | 321 HP |
| Engine RPM | 6500 RPM | 6400 RPM |
| Torque | 330 Nm | 427 Nm |
| Torque RPM | 3250 RPM | 4400 RPM |
| Engine Bore Size | 84.5 mm | 93 mm |
| Engine Stroke Size | 92.8 mm | 84 mm |
| Engine Compression Ratio | 13.0:1 | 10.5:1 |
| Drive Type | 4WD | Front |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1680 kg | 1635 kg |
| Vehicle Length | 4920 mm | 4990 mm |
| Vehicle Width | 1860 mm | 1850 mm |
| Vehicle Height | 1470 mm | 1470 mm |
| Wheelbase Size | 2850 mm | 2960 mm |
| Fuel Consumption Overall | 10.9 L/100km | 11.8 L/100km |
| Fuel Tank Capacity | 80 L | 64 L |
