2004 Audi A8 vs. 2004 BMW Z4
To start off, both 2004 Audi A8 and 2004 BMW Z4 were released in the same year (2004). Therefore the support and the availability on parts for both vehicles should be relatively similar. At 2,983 cc (6 cylinders), 2004 BMW Z4 is equipped with a bigger engine. In terms of performance, 2004 Audi A8 (230 HP @ 4000 RPM) has 5 more horse power than 2004 BMW Z4. (225 HP @ 5900 RPM). In normal driving conditions, 2004 Audi A8 should accelerate faster than 2004 BMW Z4. With that said, vehicle weight also plays an important factor in acceleration. 2004 Audi A8 weights approximately 435 kg more than 2004 BMW Z4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2004 Audi A8 is four wheel drive (4WD), it will have significant more traction and grip than 2004 BMW Z4. In wet, icy, snow, or gravel driving conditions, 2004 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, 2004 Audi A8 (450 Nm @ 1400 RPM) has 150 more torque (in Nm) than 2004 BMW Z4. (300 Nm @ 3500 RPM). This means 2004 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 2004 BMW Z4.
Compare all specifications:
| 2004 Audi A8 | 2004 BMW Z4 | |
| Make | Audi | BMW |
| Model | A8 | Z4 |
| Year Released | 2004 | 2004 |
| Body Type | Sedan | Convertible |
| Engine Position | Front | Front |
| Engine Size | 2966 cc | 2983 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 230 HP | 225 HP |
| Engine RPM | 4000 RPM | 5900 RPM |
| Torque | 450 Nm | 300 Nm |
| Torque RPM | 1400 RPM | 3500 RPM |
| Engine Compression Ratio | 17.0:1 | 10.2:1 |
| Fuel Type | Diesel | Gasoline - Premium |
| Acceleration 0-100mph | 7.8 seconds | 5.9 seconds |
| Drive Type | 4WD | Rear |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1830 kg | 1395 kg |
| Vehicle Length | 5060 mm | 4100 mm |
| Vehicle Width | 1900 mm | 1790 mm |
| Vehicle Height | 1450 mm | 1310 mm |
| Wheelbase Size | 2950 mm | 2500 mm |
| Fuel Consumption Overall | 8.4 L/100km | 9.1 L/100km |
| Fuel Tank Capacity | 90 L | 55 L |
