2007 Audi A6 vs. 2004 Buick Regal
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 Regal. In addition, the cost of maintenance, including insurance, on 2004 Buick Regal would be higher. At 3,791 cc (6 cylinders), 2004 Buick Regal is equipped with a bigger engine. In terms of performance, 2007 Audi A6 (255 HP @ 6500 RPM) has 58 more horse power than 2004 Buick Regal. (197 HP @ 5200 RPM). In normal driving conditions, 2007 Audi A6 should accelerate faster than 2004 Buick Regal. With that said, vehicle weight also plays an important factor in acceleration. 2007 Audi A6 weights approximately 359 kg more than 2004 Buick Regal. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2007 Audi A6 is four wheel drive (4WD), it will have significant more traction and grip than 2004 Buick Regal. In wet, icy, snow, or gravel driving conditions, 2007 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, 2007 Audi A6 (330 Nm @ 3250 RPM) has 18 more torque (in Nm) than 2004 Buick Regal. (312 Nm @ 4000 RPM). This means 2007 Audi A6 will have an easier job in driving up hills or pulling heavy equipment than 2004 Buick Regal.
Compare all specifications:
| 2007 Audi A6 | 2004 Buick Regal | |
| Make | Audi | Buick |
| Model | A6 | Regal |
| Year Released | 2007 | 2004 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3123 cc | 3791 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 255 HP | 197 HP |
| Engine RPM | 6500 RPM | 5200 RPM |
| Torque | 330 Nm | 312 Nm |
| Torque RPM | 3250 RPM | 4000 RPM |
| Engine Compression Ratio | 11.3:1 | 9.4:1 |
| Fuel Type | Diesel | Gasoline |
| Drive Type | 4WD | Front |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1880 kg | 1521 kg |
| Vehicle Length | 4920 mm | 4990 mm |
| Vehicle Width | 2020 mm | 1850 mm |
| Vehicle Height | 1460 mm | 1440 mm |
| Wheelbase Size | 2850 mm | 3080 mm |
| Fuel Consumption City | 12.4 L/100km | 11.9 L/100km |
| Fuel Consumption Overall | 10.7 L/100km | 10 L/100km |
| Fuel Tank Capacity | 80 L | 66 L |
