2008 BMW 730 vs. 2007 BMW Z4
To start off, 2008 BMW 730 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 2,993 cc (6 cylinders), 2008 BMW 730 is equipped with a bigger engine. In terms of performance, 2008 BMW 730 (228 HP @ 4000 RPM) has 80 more horse power than 2007 BMW Z4. (148 HP @ 6200 RPM). In normal driving conditions, 2008 BMW 730 should accelerate faster than 2007 BMW Z4. With that said, vehicle weight also plays an important factor in acceleration. 2008 BMW 730 weights approximately 605 kg more than 2007 BMW Z4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are rear wheel drive (RWD) - it offers better handling in dry conditions; in addition, if you are looking to drift, both vehicles do the job better than front wheel drive vehicles. 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 BMW 730 (500 Nm @ 2000 RPM) has 300 more torque (in Nm) than 2007 BMW Z4. (200 Nm @ 3600 RPM). This means 2008 BMW 730 will have an easier job in driving up hills or pulling heavy equipment than 2007 BMW Z4. 2008 BMW 730 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 BMW 730 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2008 BMW 730 | 2007 BMW Z4 | |
| Make | BMW | BMW |
| Model | 730 | Z4 |
| Year Released | 2008 | 2007 |
| Body Type | Sedan | Convertible |
| Engine Position | Front | Front |
| Engine Size | 2993 cc | 1993 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 228 HP | 148 HP |
| Engine RPM | 4000 RPM | 6200 RPM |
| Torque | 500 Nm | 200 Nm |
| Torque RPM | 2000 RPM | 3600 RPM |
| Engine Compression Ratio | 17.0:1 | 10.5:1 |
| Fuel Type | Diesel | Gasoline |
| Top Speed | 238 km/hour | 220 km/hour |
| Acceleration 0-100mph | 8 seconds | 8.2 seconds |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1900 kg | 1295 kg |
| Vehicle Length | 5040 mm | 4100 mm |
| Vehicle Width | 1910 mm | 1310 mm |
| Vehicle Height | 1500 mm | 1790 mm |
| Wheelbase Size | 3000 mm | 2500 mm |
| Fuel Consumption Overall | 8.4 L/100km | 7.5 L/100km |
| Fuel Tank Capacity | 88 L | 55 L |
