2009 Audi RS6 vs. 1999 Buick Regal
To start off, 2009 Audi RS6 is newer by 10 year(s). Which means there will be less support and parts availability for 1999 Buick Regal. In addition, the cost of maintenance, including insurance, on 1999 Buick Regal would be higher. At 4,991 cc (10 cylinders), 2009 Audi RS6 is equipped with a bigger engine. In terms of performance, 2009 Audi RS6 (572 HP @ 6250 RPM) has 375 more horse power than 1999 Buick Regal. (197 HP @ 5200 RPM). In normal driving conditions, 2009 Audi RS6 should accelerate faster than 1999 Buick Regal. With that said, vehicle weight also plays an important factor in acceleration. 2009 Audi RS6 weights approximately 468 kg more than 1999 Buick Regal. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2009 Audi RS6 is four wheel drive (4WD), it will have significant more traction and grip than 1999 Buick Regal. In wet, icy, snow, or gravel driving conditions, 2009 Audi RS6 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, 2009 Audi RS6 (650 Nm @ 1500 RPM) has 339 more torque (in Nm) than 1999 Buick Regal. (311 Nm @ 4000 RPM). This means 2009 Audi RS6 will have an easier job in driving up hills or pulling heavy equipment than 1999 Buick Regal.
Compare all specifications:
| 2009 Audi RS6 | 1999 Buick Regal | |
| Make | Audi | Buick |
| Model | RS6 | Regal |
| Year Released | 2009 | 1999 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4991 cc | 3789 cc |
| Engine Cylinders | 10 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 572 HP | 197 HP |
| Engine RPM | 6250 RPM | 5200 RPM |
| Torque | 650 Nm | 311 Nm |
| Torque RPM | 1500 RPM | 4000 RPM |
| Engine Bore Size | 84.5 mm | 97 mm |
| Engine Stroke Size | 89 mm | 86 mm |
| Engine Compression Ratio | 10.5:1 | 9.4:1 |
| Fuel Type | Gasoline - Premium | 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 | 2028 kg | 1560 kg |
| Vehicle Length | 4930 mm | 4990 mm |
| Vehicle Width | 1900 mm | 1850 mm |
| Vehicle Height | 1460 mm | 1440 mm |
| Wheelbase Size | 2850 mm | 2780 mm |
| Fuel Tank Capacity | 80 L | 64 L |
