2008 Audi A8 vs. 1999 BMW Z9
To start off, 2008 Audi A8 is newer by 9 year(s). Which means there will be less support and parts availability for 1999 BMW Z9. In addition, the cost of maintenance, including insurance, on 1999 BMW Z9 would be higher. At 4,397 cc (8 cylinders), 1999 BMW Z9 is equipped with a bigger engine. In terms of performance, 2008 Audi A8 (322 HP @ 3750 RPM) has 80 more horse power than 1999 BMW Z9. (242 HP @ 7400 RPM). In normal driving conditions, 2008 Audi A8 should accelerate faster than 1999 BMW Z9. With that said, vehicle weight also plays an important factor in acceleration. 2008 Audi A8 weights approximately 315 kg more than 1999 BMW Z9. 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 1999 BMW Z9. 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 (650 Nm @ 1600 RPM) has 90 more torque (in Nm) than 1999 BMW Z9. (560 Nm @ 1750 RPM). This means 2008 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 1999 BMW Z9.
Compare all specifications:
| 2008 Audi A8 | 1999 BMW Z9 | |
| Make | Audi | BMW |
| Model | A8 | Z9 |
| Year Released | 2008 | 1999 |
| Body Type | Sedan | Coupe |
| Engine Position | Front | Front |
| Engine Size | 4134 cc | 4397 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Horse Power | 322 HP | 242 HP |
| Engine RPM | 3750 RPM | 7400 RPM |
| Torque | 650 Nm | 560 Nm |
| Torque RPM | 1600 RPM | 1750 RPM |
| Engine Compression Ratio | 16.5:1 | 18.0:1 |
| Drive Type | 4WD | Rear |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1945 kg | 1630 kg |
| Vehicle Length | 5070 mm | 5010 mm |
| Vehicle Width | 1900 mm | 1980 mm |
| Vehicle Height | 1450 mm | 1350 mm |
| Wheelbase Size | 2950 mm | 3060 mm |
