2004 Audi A6 vs. 2005 Buick Regal
To start off, 2005 Buick Regal is newer by 1 year(s). Which means there will be less support and parts availability for 2004 Audi A6. In addition, the cost of maintenance, including insurance, on 2004 Audi A6 would be higher. At 3,791 cc (6 cylinders), 2005 Buick Regal is equipped with a bigger engine. In terms of performance, 2004 Audi A6 (220 HP @ 4000 RPM) has 23 more horse power than 2005 Buick Regal. (197 HP @ 5200 RPM). In normal driving conditions, 2004 Audi A6 should accelerate faster than 2005 Buick Regal. With that said, vehicle weight also plays an important factor in acceleration. 2004 Audi A6 weights approximately 270 kg more than 2005 Buick Regal. 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, 2005 Buick Regal (311 Nm) has 11 more torque (in Nm) than 2004 Audi A6. (300 Nm). This means 2005 Buick Regal will have an easier job in driving up hills or pulling heavy equipment than 2004 Audi A6.
Compare all specifications:
| 2004 Audi A6 | 2005 Buick Regal | |
| Make | Audi | Buick |
| Model | A6 | Regal |
| Year Released | 2004 | 2005 |
| Body Type | Station Wagon | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2983 cc | 3791 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 5 valves | 2 valves |
| Horse Power | 220 HP | 197 HP |
| Engine RPM | 4000 RPM | 5200 RPM |
| Torque | 300 Nm | 311 Nm |
| Engine Bore Size | 83 mm | 97 mm |
| Engine Stroke Size | 93 mm | 86 mm |
| Engine Compression Ratio | 10.5:1 | 9.4:1 |
| Drive Type | Front | Front |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1830 kg | 1560 kg |
| Vehicle Length | 4880 mm | 4990 mm |
| Vehicle Width | 1820 mm | 1850 mm |
| Vehicle Height | 1480 mm | 1440 mm |
| Wheelbase Size | 2660 mm | 2780 mm |
| Fuel Tank Capacity | 70 L | 64 L |
