2003 Audi A6 vs. 2007 Cadillac STS
To start off, 2007 Cadillac STS is newer by 4 year(s). Which means there will be less support and parts availability for 2003 Audi A6. In addition, the cost of maintenance, including insurance, on 2003 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 (322 HP @ 6400 RPM) has 173 more horse power than 2003 Audi A6. (149 HP @ 6000 RPM) In normal driving conditions, 2007 Cadillac STS should accelerate faster than 2003 Audi A6. With that said, vehicle weight also plays an important factor in acceleration. 2007 Cadillac STS weights approximately 280 kg more than 2003 Audi A6. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are four wheel drive (4WD) - it offers better handling, traction, and control in all driving conditions compared with front wheel drive or rear wheel drive vehicles. 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 192 more torque (in Nm) than 2003 Audi A6. (235 Nm @ 1750 RPM). This means 2007 Cadillac STS will have an easier job in driving up hills or pulling heavy equipment than 2003 Audi A6. 2007 Cadillac STS has automatic transmission and 2003 Audi A6 has manual transmission. 2003 Audi A6 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2007 Cadillac STS will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2003 Audi A6 | 2007 Cadillac STS | |
| Make | Audi | Cadillac |
| Model | A6 | STS |
| Year Released | 2003 | 2007 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 1799 cc | 4565 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 149 HP | 322 HP |
| Engine RPM | 6000 RPM | 6400 RPM |
| Torque | 235 Nm | 427 Nm |
| Torque RPM | 1750 RPM | 4400 RPM |
| Engine Bore Size | 81 mm | 93 mm |
| Engine Stroke Size | 86.4 mm | 84 mm |
| Engine Compression Ratio | 10.0:1 | 10.5:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | 4WD | 4WD |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1540 kg | 1820 kg |
| Vehicle Length | 4800 mm | 4990 mm |
| Vehicle Width | 1820 mm | 1850 mm |
| Vehicle Height | 1460 mm | 1470 mm |
| Wheelbase Size | 2770 mm | 2960 mm |
| Fuel Tank Capacity | 70 L | 66 L |
