2005 BMW Z4 vs. 2013 Audi A3
To start off, 2013 Audi A3 is newer by 8 year(s). Which means there will be less support and parts availability for 2005 BMW Z4. In addition, the cost of maintenance, including insurance, on 2005 BMW Z4 would be higher. At 2,171 cc (6 cylinders), 2005 BMW Z4 is equipped with a bigger engine. In terms of performance, 2005 BMW Z4 (168 HP) has 30 more horse power than 2013 Audi A3. (138 HP). In normal driving conditions, 2005 BMW Z4 should accelerate faster than 2013 Audi A3. With that said, vehicle weight also plays an important factor in acceleration. 2013 Audi A3 weights approximately 180 kg more than 2005 BMW Z4.
Because 2013 Audi A3 is all wheel drive (AWD), it will have significant more traction and grip than 2005 BMW Z4. In wet, icy, snow, or gravel driving conditions, 2013 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, 2013 Audi A3 (320 Nm @ 2500 RPM) has 110 more torque (in Nm) than 2005 BMW Z4. (210 Nm @ 3500 RPM). This means 2013 Audi A3 will have an easier job in driving up hills or pulling heavy equipment than 2005 BMW Z4.
Compare all specifications:
| 2005 BMW Z4 | 2013 Audi A3 | |
| Make | BMW | Audi |
| Model | Z4 | A3 |
| Year Released | 2005 | 2013 |
| Body Type | Convertible | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2171 cc | 1984 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | W |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 168 HP | 138 HP |
| Torque | 210 Nm | 320 Nm |
| Torque RPM | 3500 RPM | 2500 RPM |
| Engine Bore Size | 80 mm | 81 mm |
| Engine Stroke Size | 72 mm | 95.5 mm |
| Engine Compression Ratio | 10.8:1 | 16.5:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 225 km/hour | 209 km/hour |
| Drive Type | Rear | AWD |
| Transmission Type | Manual | CVT |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1325 kg | 1505 kg |
| Vehicle Length | 4100 mm | 4292 mm |
| Vehicle Width | 1790 mm | 1995 mm |
| Vehicle Height | 1310 mm | 1423 mm |
| Wheelbase Size | 2500 mm | 2578 mm |
