2009 Audi A4 vs. 2004 BMW Z4
To start off, 2009 Audi A4 is newer by 5 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 2,983 cc (6 cylinders), 2004 BMW Z4 is equipped with a bigger engine. In terms of performance, 2004 BMW Z4 (225 HP @ 5900 RPM) has 7 more horse power than 2009 Audi A4. (218 HP @ 5900 RPM) In normal driving conditions, 2004 BMW Z4 should accelerate faster than 2009 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2009 Audi A4 weights approximately 200 kg more than 2004 BMW Z4.
Because 2009 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, 2009 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, both vehicles can yield 300 Nm of torque. So under normal driving conditions, the ability to climb up hills and pull heavy equipment should be relatively similar for both vehicles.
Compare all specifications:
| 2009 Audi A4 | 2004 BMW Z4 | |
| Make | Audi | BMW |
| Model | A4 | Z4 |
| Year Released | 2009 | 2004 |
| Body Type | Sedan | Convertible |
| Engine Position | Front | Front |
| Engine Size | 1984 cc | 2983 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 218 HP | 225 HP |
| Engine RPM | 5900 RPM | 5900 RPM |
| Torque | 300 Nm | 300 Nm |
| Torque RPM | 2200 RPM | 3500 RPM |
| Engine Compression Ratio | 10.5:1 | 10.2:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 244 km/hour | 245 km/hour |
| Acceleration 0-100mph | 6.9 seconds | 5.9 seconds |
| Drive Type | 4WD | Rear |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1595 kg | 1395 kg |
| Vehicle Length | 4610 mm | 4100 mm |
| Vehicle Width | 1780 mm | 1790 mm |
| Vehicle Height | 1400 mm | 1310 mm |
| Wheelbase Size | 2660 mm | 2500 mm |
| Fuel Consumption Overall | 9 L/100km | 9.1 L/100km |
| Fuel Tank Capacity | 63 L | 55 L |
