2009 Audi A8 vs. 2003 Buick Regal
To start off, 2009 Audi A8 is newer by 6 year(s). Which means there will be less support and parts availability for 2003 Buick Regal. In addition, the cost of maintenance, including insurance, on 2003 Buick Regal would be higher. At 3,789 cc (6 cylinders), 2003 Buick Regal is equipped with a bigger engine. In terms of performance, 2009 Audi A8 (207 HP @ 5500 RPM) has 10 more horse power than 2003 Buick Regal. (197 HP @ 5200 RPM). In normal driving conditions, 2009 Audi A8 should accelerate faster than 2003 Buick Regal. With that said, vehicle weight also plays an important factor in acceleration. 2009 Audi A8 weights approximately 130 kg more than 2003 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, 2003 Buick Regal (312 Nm @ 4000 RPM) has 32 more torque (in Nm) than 2009 Audi A8. (280 Nm @ 3000 RPM). This means 2003 Buick Regal will have an easier job in driving up hills or pulling heavy equipment than 2009 Audi A8.
Compare all specifications:
| 2009 Audi A8 | 2003 Buick Regal | |
| Make | Audi | Buick |
| Model | A8 | Regal |
| Year Released | 2009 | 2003 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2772 cc | 3789 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 207 HP | 197 HP |
| Engine RPM | 5500 RPM | 5200 RPM |
| Torque | 280 Nm | 312 Nm |
| Torque RPM | 3000 RPM | 4000 RPM |
| Engine Bore Size | 84.5 mm | 97 mm |
| Engine Stroke Size | 82.4 mm | 86 mm |
| Engine Compression Ratio | 12.5:1 | 9.4:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | Front | Front |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1690 kg | 1560 kg |
| Vehicle Length | 5070 mm | 4990 mm |
| Vehicle Width | 1900 mm | 1850 mm |
| Vehicle Height | 1450 mm | 1440 mm |
| Wheelbase Size | 2950 mm | 2780 mm |
| Fuel Tank Capacity | 90 L | 64 L |
