2008 Audi A8 vs. 2007 BMW Z4
To start off, 2008 Audi A8 is newer by 1 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 5,204 cc (10 cylinders), 2008 Audi A8 is equipped with a bigger engine. In terms of performance, 2008 Audi A8 (444 HP @ 7000 RPM) has 86 more horse power than 2007 BMW Z4. (358 HP @ 7900 RPM). In normal driving conditions, 2008 Audi A8 should accelerate faster than 2007 BMW Z4.
Because 2008 Audi A8 is four wheel drive (4WD), it will have significant more traction and grip than 2007 BMW Z4. In wet, icy, snow, or gravel driving conditions, 2008 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, 2008 Audi A8 (541 Nm @ 3500 RPM) has 156 more torque (in Nm) than 2007 BMW Z4. (385 Nm @ 4900 RPM). This means 2008 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 2007 BMW Z4. 2008 Audi A8 has automatic transmission and 2007 BMW Z4 has manual transmission. 2007 BMW Z4 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2008 Audi A8 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2008 Audi A8 | 2007 BMW Z4 | |
| Make | Audi | BMW |
| Model | A8 | Z4 |
| Year Released | 2008 | 2007 |
| Body Type | Sedan | Convertible |
| Engine Position | Front | Front |
| Engine Size | 5204 cc | 3199 cc |
| Engine Cylinders | 10 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 444 HP | 358 HP |
| Engine RPM | 7000 RPM | 7900 RPM |
| Torque | 541 Nm | 385 Nm |
| Torque RPM | 3500 RPM | 4900 RPM |
| Fuel Type | Gasoline - Premium | Gasoline |
| Top Speed | 250 km/hour | 273 km/hour |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Length | 5070 mm | 4100 mm |
| Vehicle Width | 1900 mm | 1790 mm |
| Vehicle Height | 1430 mm | 1300 mm |
| Wheelbase Size | 2950 mm | 2500 mm |
