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 2,497 cc (6 cylinders), 2009 BMW Z4 is equipped with a bigger engine. In terms of performance, 2009 BMW Z4 (215 HP @ 6500 RPM) has 18 more horse power than 2007 Audi A3. (197 HP @ 5100 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 186 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 (280 Nm @ 1800 RPM) has 30 more torque (in Nm) than 2009 BMW Z4. (250 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 | 1984 cc | 2497 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 197 HP | 215 HP |
| Engine RPM | 5100 RPM | 6500 RPM |
| Torque | 280 Nm | 250 Nm |
| Torque RPM | 1800 RPM | 2750 RPM |
| Engine Bore Size | 82.5 mm | 82 mm |
| Engine Stroke Size | 92.8 mm | 78.8 mm |
| Engine Compression Ratio | 10.5:1 | 11.0:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 234 km/hour | 240 km/hour |
| Acceleration 0-100mph | 7.1 seconds | 7 seconds |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1548 kg | 1362 kg |
| Vehicle Length | 4220 mm | 4100 mm |
| Vehicle Width | 1770 mm | 1310 mm |
| Vehicle Height | 1430 mm | 1790 mm |
| Wheelbase Size | 2580 mm | 2500 mm |
| Fuel Consumption Overall | 8.9 L/100km | 8.4 L/100km |
| Fuel Tank Capacity | 60 L | 55 L |
