2004 Audi A4 vs. 2006 BMW Z4
To start off, 2006 BMW Z4 is newer by 2 year(s). Which means there will be less support and parts availability for 2004 Audi A4. In addition, the cost of maintenance, including insurance, on 2004 Audi A4 would be higher. At 2,979 cc (6 cylinders), 2006 BMW Z4 is equipped with a bigger engine. In terms of performance, 2006 BMW Z4 (228 HP @ 5900 RPM) has 41 more horse power than 2004 Audi A4. (187 HP @ 5100 RPM) In normal driving conditions, 2006 BMW Z4 should accelerate faster than 2004 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2004 Audi A4 weights approximately 175 kg more than 2006 BMW Z4.
Because 2004 Audi A4 is four wheel drive (4WD), it will have significant more traction and grip than 2006 BMW Z4. 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, 2006 BMW Z4 (301 Nm @ 3500 RPM) has 21 more torque (in Nm) than 2004 Audi A4. (280 Nm @ 1800 RPM). This means 2006 BMW Z4 will have an easier job in driving up hills or pulling heavy equipment than 2004 Audi A4.
Compare all specifications:
| 2004 Audi A4 | 2006 BMW Z4 | |
| Make | Audi | BMW |
| Model | A4 | Z4 |
| Year Released | 2004 | 2006 |
| Body Type | Station Wagon | Convertible |
| Engine Position | Front | Front |
| Engine Size | 1984 cc | 2979 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 187 HP | 228 HP |
| Engine RPM | 5100 RPM | 5900 RPM |
| Torque | 280 Nm | 301 Nm |
| Torque RPM | 1800 RPM | 3500 RPM |
| Engine Bore Size | 82.5 mm | 84 mm |
| Engine Stroke Size | 92.8 mm | 89.6 mm |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 233 km/hour | 250 km/hour |
| Acceleration 0-100mph | 7.5 seconds | 5.9 seconds |
| Drive Type | 4WD | Rear |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1540 kg | 1365 kg |
| Vehicle Length | 4590 mm | 4100 mm |
| Vehicle Width | 1780 mm | 1790 mm |
| Vehicle Height | 1430 mm | 1310 mm |
| Wheelbase Size | 2470 mm | 2500 mm |
| Fuel Consumption | 6.6 L/100km | 7.8 L/100km |
| Fuel Consumption City | 12.6 L/100km | 11.8 L/100km |
| Fuel Consumption Overall | 8.8 L/100km | 9.1 L/100km |
| Fuel Tank Capacity | 63 L | 55 L |
