2005 Audi A6 vs. 1999 Buick Riviera
To start off, 2005 Audi A6 is newer by 6 year(s). Which means there will be less support and parts availability for 1999 Buick Riviera. In addition, the cost of maintenance, including insurance, on 1999 Buick Riviera would be higher. At 3,791 cc (6 cylinders), 1999 Buick Riviera is equipped with a bigger engine. In terms of performance, 2005 Audi A6 (252 HP @ 6500 RPM) has 47 more horse power than 1999 Buick Riviera. (205 HP @ 5200 RPM). In normal driving conditions, 2005 Audi A6 should accelerate faster than 1999 Buick Riviera. With that said, vehicle weight also plays an important factor in acceleration. 1999 Buick Riviera weights approximately 130 kg more than 2005 Audi A6.
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, 2005 Audi A6 (330 Nm @ 3250 RPM) has 18 more torque (in Nm) than 1999 Buick Riviera. (312 Nm @ 4000 RPM). This means 2005 Audi A6 will have an easier job in driving up hills or pulling heavy equipment than 1999 Buick Riviera.
Compare all specifications:
| 2005 Audi A6 | 1999 Buick Riviera | |
| Make | Audi | Buick |
| Model | A6 | Riviera |
| Year Released | 2005 | 1999 |
| Body Type | Sedan | Coupe |
| Engine Position | Front | Front |
| Engine Size | 2965 cc | 3791 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 252 HP | 205 HP |
| Engine RPM | 6500 RPM | 5200 RPM |
| Torque | 330 Nm | 312 Nm |
| Torque RPM | 3250 RPM | 4000 RPM |
| Engine Bore Size | 84.5 mm | 96.5 mm |
| Engine Stroke Size | 92.8 mm | 86.4 mm |
| Engine Compression Ratio | 12.5:1 | 9.4:1 |
| Drive Type | Front | Front |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1570 kg | 1700 kg |
| Vehicle Length | 4920 mm | 5270 mm |
| Vehicle Width | 1860 mm | 1910 mm |
| Vehicle Height | 1470 mm | 1400 mm |
