2002 Buick Regal vs. 2004 Audi A6
To start off, 2004 Audi A6 is newer by 2 year(s). Which means there will be less support and parts availability for 2002 Buick Regal. In addition, the cost of maintenance, including insurance, on 2002 Buick Regal would be higher. At 3,791 cc (6 cylinders), 2002 Buick Regal is equipped with a bigger engine. In terms of performance, 2002 Buick Regal (205 HP @ 5200 RPM) has 27 more horse power than 2004 Audi A6. (178 HP @ 4000 RPM). In normal driving conditions, 2002 Buick Regal should accelerate faster than 2004 Audi A6. With that said, vehicle weight also plays an important factor in acceleration. 2004 Audi A6 weights approximately 170 kg more than 2002 Buick Regal.
Because 2004 Audi A6 is four wheel drive (4WD), it will have significant more traction and grip than 2002 Buick Regal. In wet, icy, snow, or gravel driving conditions, 2004 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, 2004 Audi A6 (370 Nm @ 1500 RPM) has 59 more torque (in Nm) than 2002 Buick Regal. (311 Nm @ 4000 RPM). This means 2004 Audi A6 will have an easier job in driving up hills or pulling heavy equipment than 2002 Buick Regal.
Compare all specifications:
| 2002 Buick Regal | 2004 Audi A6 | |
| Make | Buick | Audi |
| Model | Regal | A6 |
| Year Released | 2002 | 2004 |
| Body Type | Sedan | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 3791 cc | 2393 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 205 HP | 178 HP |
| Engine RPM | 5200 RPM | 4000 RPM |
| Torque | 311 Nm | 370 Nm |
| Torque RPM | 4000 RPM | 1500 RPM |
| Engine Bore Size | 97 mm | 78.3 mm |
| Engine Stroke Size | 86 mm | 86.4 mm |
| Engine Compression Ratio | 9.4:1 | 19.0:1 |
| Fuel Type | Gasoline | Diesel |
| Drive Type | Front | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1560 kg | 1730 kg |
| Vehicle Length | 4990 mm | 4800 mm |
| Vehicle Width | 1850 mm | 1820 mm |
| Vehicle Height | 1440 mm | 1460 mm |
| Wheelbase Size | 2780 mm | 2890 mm |
| Fuel Tank Capacity | 64 L | 70 L |
