2002 BMW Z4 vs. 2009 Audi A6
To start off, 2009 Audi A6 is newer by 7 year(s). Which means there will be less support and parts availability for 2002 BMW Z4. In addition, the cost of maintenance, including insurance, on 2002 BMW Z4 would be higher. At 2,996 cc (6 cylinders), 2002 BMW Z4 is equipped with a bigger engine. In terms of performance, 2002 BMW Z4 (227 HP @ 5900 RPM) has 59 more horse power than 2009 Audi A6. (168 HP @ 6000 RPM). In normal driving conditions, 2002 BMW Z4 should accelerate faster than 2009 Audi A6. With that said, vehicle weight also plays an important factor in acceleration. 2009 Audi A6 weights approximately 254 kg more than 2002 BMW Z4.
Because 2009 Audi A6 is four wheel drive (4WD), it will have significant more traction and grip than 2002 BMW Z4. In wet, icy, snow, or gravel driving conditions, 2009 Audi A6 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, 2002 BMW Z4 (300 Nm @ 3500 RPM) has 70 more torque (in Nm) than 2009 Audi A6. (230 Nm @ 3200 RPM). This means 2002 BMW Z4 will have an easier job in driving up hills or pulling heavy equipment than 2009 Audi A6.
Compare all specifications:
| 2002 BMW Z4 | 2009 Audi A6 | |
| Make | BMW | Audi |
| Model | Z4 | A6 |
| Year Released | 2002 | 2009 |
| Body Type | Convertible | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 2996 cc | 2393 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Horse Power | 227 HP | 168 HP |
| Engine RPM | 5900 RPM | 6000 RPM |
| Torque | 300 Nm | 230 Nm |
| Torque RPM | 3500 RPM | 3200 RPM |
| Engine Bore Size | 84 mm | 81 mm |
| Engine Stroke Size | 89.6 mm | 77.4 mm |
| Engine Compression Ratio | 10.2:1 | 11.0:1 |
| Top Speed | 244 km/hour | 218 km/hour |
| Acceleration 0-100mph | 6.2 seconds | 9.9 seconds |
| Drive Type | Rear | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1386 kg | 1640 kg |
| Vehicle Length | 4100 mm | 4800 mm |
| Vehicle Width | 1790 mm | 1820 mm |
| Vehicle Height | 1310 mm | 1460 mm |
| Wheelbase Size | 2500 mm | 2770 mm |
| Fuel Consumption Overall | 9.5 L/100km | 10.8 L/100km |
| Fuel Tank Capacity | 55 L | 70 L |
