2007 BMW Z4 vs. 2012 Audi A8
To start off, 2012 Audi A8 is newer by 5 year(s). Which means there will be less support and parts availability for 2007 BMW Z4. In addition, the cost of maintenance, including insurance, on 2007 BMW Z4 would be higher. At 6,300 cc (12 cylinders), 2012 Audi A8 is equipped with a bigger engine. In terms of performance, 2012 Audi A8 (500 HP @ 6200 RPM) has 285 more horse power than 2007 BMW Z4. (215 HP @ 6500 RPM) In normal driving conditions, 2012 Audi A8 should accelerate faster than 2007 BMW Z4.
Because 2012 Audi A8 is all wheel drive (AWD), it will have significant more traction and grip than 2007 BMW Z4. In wet, icy, snow, or gravel driving conditions, 2012 Audi A8 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, 2012 Audi A8 (627 Nm @ 4750 RPM) has 377 more torque (in Nm) than 2007 BMW Z4. (250 Nm @ 2750 RPM). This means 2012 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 2007 BMW Z4.
Compare all specifications:
| 2007 BMW Z4 | 2012 Audi A8 | |
| Make | BMW | Audi |
| Model | Z4 | A8 |
| Year Released | 2007 | 2012 |
| Body Type | Convertible | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2494 cc | 6300 cc |
| Engine Cylinders | 6 cylinders | 12 cylinders |
| Engine Type | in-line | W |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 215 HP | 500 HP |
| Engine RPM | 6500 RPM | 6200 RPM |
| Torque | 250 Nm | 627 Nm |
| Torque RPM | 2750 RPM | 4750 RPM |
| Fuel Type | Gasoline | Gasoline |
| Top Speed | 227 km/hour | 250 km/hour |
| Drive Type | Rear | AWD |
| Transmission Type | Automatic | 8-speed shiftable automatic |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Length | 4100 mm | 5268 mm |
| Vehicle Width | 1790 mm | 1948 mm |
| Vehicle Height | 1310 mm | 1471 mm |
| Wheelbase Size | 2500 mm | 3122 mm |
| Fuel Tank Capacity | 55 L | 90 L |
