2008 Audi A8 vs. 1991 Audi V8
To start off, 2008 Audi A8 is newer by 17 year(s). Which means there will be less support and parts availability for 1991 Audi V8. In addition, the cost of maintenance, including insurance, on 1991 Audi V8 would be higher. At 4,172 cc (8 cylinders), 1991 Audi V8 is equipped with a bigger engine. In terms of performance, 1991 Audi V8 (280 HP @ 5800 RPM) has 9 more horse power than 2008 Audi A8. (271 HP @ 3750 RPM) In normal driving conditions, 1991 Audi V8 should accelerate faster than 2008 Audi A8. With that said, vehicle weight also plays an important factor in acceleration. 2008 Audi A8 weights approximately 228 kg more than 1991 Audi V8.
Both vehicles are four wheel drive (4WD) - it offers better handling, traction, and control in all driving conditions compared with front wheel drive or 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, 2008 Audi A8 (650 Nm @ 1800 RPM) has 250 more torque (in Nm) than 1991 Audi V8. (400 Nm @ 4000 RPM). This means 2008 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 1991 Audi V8.
Compare all specifications:
| 2008 Audi A8 | 1991 Audi V8 | |
| Make | Audi | Audi |
| Model | A8 | V8 |
| Year Released | 2008 | 1991 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3934 cc | 4172 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Horse Power | 271 HP | 280 HP |
| Engine RPM | 3750 RPM | 5800 RPM |
| Torque | 650 Nm | 400 Nm |
| Torque RPM | 1800 RPM | 4000 RPM |
| Engine Compression Ratio | 18.0:1 | 10.6:1 |
| Top Speed | 250 km/hour | 244 km/hour |
| Acceleration 0-100mph | 6.7 seconds | 7.7 seconds |
| Drive Type | 4WD | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1940 kg | 1712 kg |
| Vehicle Length | 5060 mm | 4880 mm |
| Vehicle Width | 1900 mm | 1820 mm |
| Vehicle Height | 1450 mm | 1430 mm |
| Wheelbase Size | 2950 mm | 2710 mm |
