2008 Audi A8 vs. 1991 Buick Riviera
To start off, 2008 Audi A8 is newer by 17 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, 2008 Audi A8 (230 HP @ 4000 RPM) has 60 more horse power than 1991 Buick Riviera. (170 HP @ 4800 RPM). In normal driving conditions, 2008 Audi A8 should accelerate faster than 1991 Buick Riviera. With that said, vehicle weight also plays an important factor in acceleration. 2008 Audi A8 weights approximately 310 kg more than 1991 Buick Riviera. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2008 Audi A8 is four wheel drive (4WD), it will have significant more traction and grip than 1991 Buick Riviera. In wet, icy, snow, or gravel driving conditions, 2008 Audi A8 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, 2008 Audi A8 (450 Nm @ 1400 RPM) has 165 more torque (in Nm) than 1991 Buick Riviera. (285 Nm @ 3200 RPM). This means 2008 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 1991 Buick Riviera.
Compare all specifications:
| 2008 Audi A8 | 1991 Buick Riviera | |
| Make | Audi | Buick |
| Model | A8 | Riviera |
| Year Released | 2008 | 1991 |
| Body Type | Sedan | Coupe |
| Engine Position | Front | Front |
| Engine Size | 2967 cc | 3800 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | V |
| Horse Power | 230 HP | 170 HP |
| Engine RPM | 4000 RPM | 4800 RPM |
| Torque | 450 Nm | 285 Nm |
| Torque RPM | 1400 RPM | 3200 RPM |
| Engine Compression Ratio | 17.0:1 | 8.5:1 |
| Fuel Type | Diesel | Gasoline |
| Drive Type | 4WD | Front |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1830 kg | 1520 kg |
| Vehicle Length | 5190 mm | 5040 mm |
| Vehicle Width | 1900 mm | 1830 mm |
| Vehicle Height | 1450 mm | 1350 mm |
| Wheelbase Size | 3080 mm | 2760 mm |
