2007 Audi A3 vs. 2009 BMW Z4
To start off, 2009 BMW Z4 is newer by 2 year(s). Which means there will be less support and parts availability for 2007 Audi A3. In addition, the cost of maintenance, including insurance, on 2007 Audi A3 would be higher. At 2,996 cc (6 cylinders), 2009 BMW Z4 is equipped with a bigger engine. In terms of performance, 2009 BMW Z4 (335 HP @ 7900 RPM) has 197 more horse power than 2007 Audi A3. (138 HP @ 4000 RPM) In normal driving conditions, 2009 BMW Z4 should accelerate faster than 2007 Audi A3. With that said, vehicle weight also plays an important factor in acceleration. 2007 Audi A3 weights approximately 195 kg more than 2009 BMW Z4.
Because 2007 Audi A3 is four wheel drive (4WD), it will have significant more traction and grip than 2009 BMW Z4. In wet, icy, snow, or gravel driving conditions, 2007 Audi A3 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, 2007 Audi A3 (320 Nm @ 1750 RPM) has 5 more torque (in Nm) than 2009 BMW Z4. (315 Nm @ 2750 RPM). This means 2007 Audi A3 will have an easier job in driving up hills or pulling heavy equipment than 2009 BMW Z4.
Compare all specifications:
| 2007 Audi A3 | 2009 BMW Z4 | |
| Make | Audi | BMW |
| Model | A3 | Z4 |
| Year Released | 2007 | 2009 |
| Body Type | Hatchback | Convertible |
| Engine Position | Front | Front |
| Engine Size | 1967 cc | 2996 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 138 HP | 335 HP |
| Engine RPM | 4000 RPM | 7900 RPM |
| Torque | 320 Nm | 315 Nm |
| Torque RPM | 1750 RPM | 2750 RPM |
| Engine Compression Ratio | 18.0:1 | 12.0:1 |
| Fuel Type | Diesel | Gasoline |
| Top Speed | 205 km/hour | 244 km/hour |
| Acceleration 0-100mph | 9.4 seconds | 6.2 seconds |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 4 seats | 2 seats |
| Number of Doors | 3 doors | 2 doors |
| Vehicle Weight | 1505 kg | 1310 kg |
| Vehicle Length | 4210 mm | 4100 mm |
| Vehicle Width | 1770 mm | 1790 mm |
| Vehicle Height | 1430 mm | 1310 mm |
| Wheelbase Size | 2580 mm | 2500 mm |
| Fuel Consumption Overall | 5.8 L/100km | 9.7 L/100km |
| Fuel Tank Capacity | 60 L | 55 L |
