2007 Audi A6 vs. 2004 Buick Century
To start off, 2007 Audi A6 is newer by 3 year(s). Which means there will be less support and parts availability for 2004 Buick Century. In addition, the cost of maintenance, including insurance, on 2004 Buick Century would be higher. At 3,698 cc (6 cylinders), 2007 Audi A6 is equipped with a bigger engine. In terms of performance, 2007 Audi A6 (178 HP @ 3300 RPM) has 2 more horse power than 2004 Buick Century. (176 HP @ 5200 RPM). In normal driving conditions, 2007 Audi A6 should accelerate faster than 2004 Buick Century. With that said, vehicle weight also plays an important factor in acceleration. 2007 Audi A6 weights approximately 135 kg more than 2004 Buick Century. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are front wheel drive (FWD). Which offers better traction when its slippery than 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 Audi A6 (380 Nm @ 1400 RPM) has 116 more torque (in Nm) than 2004 Buick Century. (264 Nm @ 4000 RPM). This means 2007 Audi A6 will have an easier job in driving up hills or pulling heavy equipment than 2004 Buick Century.
Compare all specifications:
| 2007 Audi A6 | 2004 Buick Century | |
| Make | Audi | Buick |
| Model | A6 | Century |
| Year Released | 2007 | 2004 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3698 cc | 3134 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 178 HP | 176 HP |
| Engine RPM | 3300 RPM | 5200 RPM |
| Torque | 380 Nm | 264 Nm |
| Torque RPM | 1400 RPM | 4000 RPM |
| Engine Bore Size | 83 mm | 89 mm |
| Engine Stroke Size | 83.1 mm | 84 mm |
| Engine Compression Ratio | 17.0:1 | 9.6:1 |
| Fuel Type | Diesel | Gasoline |
| Drive Type | Front | Front |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1655 kg | 1520 kg |
| Vehicle Length | 4920 mm | 4950 mm |
| Vehicle Width | 1470 mm | 1850 mm |
| Vehicle Height | 1860 mm | 1440 mm |
| Wheelbase Size | 2850 mm | 2780 mm |
| Fuel Consumption Overall | 7.2 L/100km | 9.8 L/100km |
| Fuel Tank Capacity | 70 L | 64 L |
