2009 Audi A4 vs. 2008 BMW Z4
To start off, 2009 Audi A4 is newer by 1 year(s). Which means there will be less support and parts availability for 2008 BMW Z4. In addition, the cost of maintenance, including insurance, on 2008 BMW Z4 would be higher. At 2,996 cc (6 cylinders), 2008 BMW Z4 is equipped with a bigger engine. In terms of performance, 2008 BMW Z4 (255 HP @ 6600 RPM) has 33 more horse power than 2009 Audi A4. (222 HP @ 4000 RPM) In normal driving conditions, 2008 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 225 kg more than 2008 BMW Z4.
Because 2009 Audi A4 is four wheel drive (4WD), it will have significant more traction and grip than 2008 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, 2009 Audi A4 (450 Nm @ 1400 RPM) has 151 more torque (in Nm) than 2008 BMW Z4. (299 Nm @ 2750 RPM). This means 2009 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 2008 BMW Z4.
Compare all specifications:
| 2009 Audi A4 | 2008 BMW Z4 | |
| Make | Audi | BMW |
| Model | A4 | Z4 |
| Year Released | 2009 | 2008 |
| Body Type | Sedan | Convertible |
| Engine Position | Front | Front |
| Engine Size | 2965 cc | 2996 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 222 HP | 255 HP |
| Engine RPM | 4000 RPM | 6600 RPM |
| Torque | 450 Nm | 299 Nm |
| Torque RPM | 1400 RPM | 2750 RPM |
| Fuel Type | Diesel | Gasoline |
| Top Speed | 235 km/hour | 250 km/hour |
| Acceleration 0-100mph | 7.2 seconds | 5.7 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 | 1610 kg | 1385 kg |
| Vehicle Length | 4550 mm | 4100 mm |
| Vehicle Width | 1780 mm | 1310 mm |
| Vehicle Height | 1430 mm | 1790 mm |
| Wheelbase Size | 2660 mm | 2500 mm |
| Fuel Consumption Overall | 7.6 L/100km | 8.6 L/100km |
| Fuel Tank Capacity | 70 L | 55 L |
