2005 Audi A4 vs. 2004 BMW Z4
To start off, 2005 Audi A4 is newer by 1 year(s). Which means there will be less support and parts availability for 2004 BMW Z4. In addition, the cost of maintenance, including insurance, on 2004 BMW Z4 would be higher. At 2,981 cc (6 cylinders), 2005 Audi A4 is equipped with a bigger engine. In terms of performance, 2005 Audi A4 (217 HP @ 6300 RPM) has 49 more horse power than 2004 BMW Z4. (168 HP @ 6250 RPM). In normal driving conditions, 2005 Audi A4 should accelerate faster than 2004 BMW Z4. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi A4 weights approximately 285 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 2005 Audi A4 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, 2005 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, 2005 Audi A4 (300 Nm @ 3200 RPM) has 90 more torque (in Nm) than 2004 BMW Z4. (210 Nm @ 3500 RPM). This means 2005 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 2004 BMW Z4. 2004 BMW Z4 has automatic transmission and 2005 Audi A4 has manual transmission. 2005 Audi A4 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2004 BMW Z4 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2005 Audi A4 | 2004 BMW Z4 | |
| Make | Audi | BMW |
| Model | A4 | Z4 |
| Year Released | 2005 | 2004 |
| Body Type | Station Wagon | Convertible |
| Engine Position | Front | Front |
| Engine Size | 2981 cc | 2171 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 217 HP | 168 HP |
| Engine RPM | 6300 RPM | 6250 RPM |
| Torque | 300 Nm | 210 Nm |
| Torque RPM | 3200 RPM | 3500 RPM |
| Engine Compression Ratio | 11.0:1 | 10.8:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 236 km/hour | 220 km/hour |
| Acceleration 0-100mph | 8.9 seconds | 7.7 seconds |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1610 kg | 1325 kg |
| Vehicle Length | 4550 mm | 4100 mm |
| Vehicle Width | 1780 mm | 1790 mm |
| Vehicle Height | 1430 mm | 1310 mm |
| Wheelbase Size | 2660 mm | 2500 mm |
| Fuel Consumption Overall | 10.9 L/100km | 8.9 L/100km |
| Fuel Tank Capacity | 66 L | 55 L |
