2005 Audi A6 vs. 2007 Cadillac STS
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 3,556 cc (6 cylinders), 2007 Cadillac STS is equipped with a bigger engine. In terms of performance, 2007 Cadillac STS (255 HP @ 6500 RPM) has 77 more horse power than 2005 Audi A6. (178 HP @ 3300 RPM) In normal driving conditions, 2007 Cadillac STS should accelerate faster than 2005 Audi A6.
Because 2007 Cadillac STS is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 2007 Cadillac STS. However, in wet, icy, snow, or gravel driving conditions, 2005 Audi A6, being front wheel drive (FWD), will offer much better control with better grip. 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, 2005 Audi A6 (370 Nm @ 1400 RPM) has 28 more torque (in Nm) than 2007 Cadillac STS. (342 Nm @ 3200 RPM). This means 2005 Audi A6 will have an easier job in driving up hills or pulling heavy equipment than 2007 Cadillac STS. 2007 Cadillac STS has automatic transmission and 2005 Audi A6 has manual transmission. 2005 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:
| 2005 Audi A6 | 2007 Cadillac STS | |
| Make | Audi | Cadillac |
| Model | A6 | STS |
| Year Released | 2005 | 2007 |
| Body Type | Station Wagon | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2698 cc | 3556 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 178 HP | 255 HP |
| Engine RPM | 3300 RPM | 6500 RPM |
| Torque | 370 Nm | 342 Nm |
| Torque RPM | 1400 RPM | 3200 RPM |
| Engine Compression Ratio | 17.0:1 | 10.2:1 |
| Fuel Type | Diesel | Gasoline - Premium |
| Drive Type | Front | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Length | 4940 mm | 4990 mm |
| Vehicle Width | 1860 mm | 1850 mm |
| Vehicle Height | 1470 mm | 1470 mm |
| Wheelbase Size | 2770 mm | 2960 mm |
| Fuel Consumption Overall | 7.1 L/100km | 11.2 L/100km |
| Fuel Tank Capacity | 70 L | 64 L |
