2004 Audi A4 vs. 1999 BMW Z8
To start off, 2004 Audi A4 is newer by 5 year(s). Which means there will be less support and parts availability for 1999 BMW Z8. In addition, the cost of maintenance, including insurance, on 1999 BMW Z8 would be higher. At 4,939 cc (8 cylinders), 1999 BMW Z8 is equipped with a bigger engine. In terms of performance, 1999 BMW Z8 (400 HP @ 6600 RPM) has 272 more horse power than 2004 Audi A4. (128 HP @ 4000 RPM) In normal driving conditions, 1999 BMW Z8 should accelerate faster than 2004 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 1999 BMW Z8 weights approximately 100 kg more than 2004 Audi A4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2004 Audi A4 is four wheel drive (4WD), it will have significant more traction and grip than 1999 BMW Z8. In wet, icy, snow, or gravel driving conditions, 2004 Audi A4 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, 1999 BMW Z8 (500 Nm @ 3800 RPM) has 180 more torque (in Nm) than 2004 Audi A4. (320 Nm @ 1900 RPM). This means 1999 BMW Z8 will have an easier job in driving up hills or pulling heavy equipment than 2004 Audi A4.
Compare all specifications:
| 2004 Audi A4 | 1999 BMW Z8 | |
| Make | Audi | BMW |
| Model | A4 | Z8 |
| Year Released | 2004 | 1999 |
| Body Type | Sedan | Convertible |
| Engine Position | Front | Front |
| Engine Size | 1896 cc | 4939 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 128 HP | 400 HP |
| Engine RPM | 4000 RPM | 6600 RPM |
| Torque | 320 Nm | 500 Nm |
| Torque RPM | 1900 RPM | 3800 RPM |
| Engine Bore Size | 79.5 mm | 94 mm |
| Engine Stroke Size | 95.5 mm | 89 mm |
| Engine Compression Ratio | 19.0:1 | 11.0:1 |
| Fuel Type | Diesel | Gasoline |
| Top Speed | 205 km/hour | 250 km/hour |
| Acceleration 0-100mph | 10.1 seconds | 4.7 seconds |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1485 kg | 1585 kg |
| Vehicle Length | 4550 mm | 4410 mm |
| Vehicle Width | 1780 mm | 1840 mm |
| Vehicle Height | 1430 mm | 1320 mm |
| Wheelbase Size | 2660 mm | 2510 mm |
| Fuel Consumption Overall | 6.4 L/100km | 14.5 L/100km |
| Fuel Tank Capacity | 66 L | 73 L |
