2006 BMW Z4 vs. 2009 Audi A4
To start off, 2009 Audi A4 is newer by 3 year(s). Which means there will be less support and parts availability for 2006 BMW Z4. In addition, the cost of maintenance, including insurance, on 2006 BMW Z4 would be higher. At 3,246 cc (6 cylinders), 2006 BMW Z4 is equipped with a bigger engine. In terms of performance, 2006 BMW Z4 (343 HP @ 7900 RPM) has 121 more horse power than 2009 Audi A4. (222 HP @ 4000 RPM). In normal driving conditions, 2006 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 278 kg more than 2006 BMW Z4.
Because 2009 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, 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, 2006 BMW Z4 (495 Nm @ 4900 RPM) has 45 more torque (in Nm) than 2009 Audi A4. (450 Nm @ 1400 RPM). This means 2006 BMW Z4 will have an easier job in driving up hills or pulling heavy equipment than 2009 Audi A4. 2009 Audi A4 has automatic transmission and 2006 BMW Z4 has manual transmission. 2006 BMW Z4 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2009 Audi A4 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2006 BMW Z4 | 2009 Audi A4 | |
| Make | BMW | Audi |
| Model | Z4 | A4 |
| Year Released | 2006 | 2009 |
| Body Type | Coupe | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3246 cc | 2965 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Horse Power | 343 HP | 222 HP |
| Engine RPM | 7900 RPM | 4000 RPM |
| Torque | 495 Nm | 450 Nm |
| Torque RPM | 4900 RPM | 1400 RPM |
| Engine Compression Ratio | 11.5:1 | 17.0:1 |
| Fuel Type | Gasoline - Premium | Diesel |
| Top Speed | 249 km/hour | 235 km/hour |
| Acceleration 0-100mph | 5 seconds | 7.2 seconds |
| Drive Type | Rear | 4WD |
| Transmission Type | Manual | Automatic |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1332 kg | 1610 kg |
| Vehicle Length | 4100 mm | 4550 mm |
| Vehicle Width | 1790 mm | 1780 mm |
| Vehicle Height | 1300 mm | 1430 mm |
| Wheelbase Size | 2500 mm | 2660 mm |
| Fuel Consumption Overall | 11.4 L/100km | 7.6 L/100km |
| Fuel Tank Capacity | 60 L | 70 L |
