2003 Audi A6 vs. 2005 Buick Regal
To start off, 2005 Buick Regal is newer by 2 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 3,791 cc (6 cylinders), 2005 Buick Regal is equipped with a bigger engine. In terms of performance, 2003 Audi A6 (217 HP @ 6300 RPM) has 20 more horse power than 2005 Buick Regal. (197 HP @ 5200 RPM). In normal driving conditions, 2003 Audi A6 should accelerate faster than 2005 Buick Regal. With that said, vehicle weight also plays an important factor in acceleration. 2003 Audi A6 weights approximately 85 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.
Because 2003 Audi A6 is four wheel drive (4WD), it will have significant more traction and grip than 2005 Buick Regal. In wet, icy, snow, or gravel driving conditions, 2003 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, 2003 Audi A6 (320 Nm @ 3200 RPM) has 9 more torque (in Nm) than 2005 Buick Regal. (311 Nm @ 4000 RPM). This means 2003 Audi A6 will have an easier job in driving up hills or pulling heavy equipment than 2005 Buick Regal. 2005 Buick Regal 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. 2005 Buick Regal will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2003 Audi A6 | 2005 Buick Regal | |
| Make | Audi | Buick |
| Model | A6 | Regal |
| Year Released | 2003 | 2005 |
| Body Type | Station Wagon | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2976 cc | 3791 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 5 valves | 2 valves |
| Horse Power | 217 HP | 197 HP |
| Engine RPM | 6300 RPM | 5200 RPM |
| Torque | 320 Nm | 311 Nm |
| Torque RPM | 3200 RPM | 4000 RPM |
| Engine Bore Size | 82.5 mm | 97 mm |
| Engine Stroke Size | 92.8 mm | 86 mm |
| Engine Compression Ratio | 11.0:1 | 9.4:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | 4WD | Front |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1645 kg | 1560 kg |
| Vehicle Length | 4800 mm | 4990 mm |
| Vehicle Width | 1820 mm | 1850 mm |
| Vehicle Height | 1460 mm | 1440 mm |
| Wheelbase Size | 2430 mm | 2780 mm |
| Fuel Tank Capacity | 70 L | 64 L |
