1997 Audi A6 vs. 1991 Buick Riviera
To start off, 1997 Audi A6 is newer by 6 year(s). Which means there will be less support and parts availability for 1991 Buick Riviera. In addition, the cost of maintenance, including insurance, on 1991 Buick Riviera would be higher. At 3,800 cc (6 cylinders), 1991 Buick Riviera is equipped with a bigger engine. In terms of performance, 1991 Buick Riviera (170 HP @ 4800 RPM) has 41 more horse power than 1997 Audi A6. (129 HP @ 4000 RPM) In normal driving conditions, 1991 Buick Riviera should accelerate faster than 1997 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, 1997 Audi A6 (310 Nm @ 1900 RPM) has 25 more torque (in Nm) than 1991 Buick Riviera. (285 Nm @ 3200 RPM). This means 1997 Audi A6 will have an easier job in driving up hills or pulling heavy equipment than 1991 Buick Riviera.
Compare all specifications:
| 1997 Audi A6 | 1991 Buick Riviera | |
| Make | Audi | Buick |
| Model | A6 | Riviera |
| Year Released | 1997 | 1991 |
| Body Type | Sedan | Coupe |
| Engine Position | Front | Front |
| Engine Size | 1894 cc | 3800 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Horse Power | 129 HP | 170 HP |
| Engine RPM | 4000 RPM | 4800 RPM |
| Torque | 310 Nm | 285 Nm |
| Torque RPM | 1900 RPM | 3200 RPM |
| Engine Bore Size | 79.5 mm | 96.5 mm |
| Engine Stroke Size | 95.5 mm | 86.4 mm |
| Engine Compression Ratio | 19.5:1 | 8.5:1 |
| Fuel Type | Diesel | Gasoline |
| Drive Type | Front | Front |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1520 kg | 1520 kg |
| Vehicle Length | 4800 mm | 5040 mm |
| Vehicle Width | 1820 mm | 1830 mm |
| Vehicle Height | 1460 mm | 1350 mm |
| Wheelbase Size | 2770 mm | 2760 mm |
