2009 BMW Z4 vs. 2006 BMW 740
To start off, 2009 BMW Z4 is newer by 3 year(s). Which means there will be less support and parts availability for 2006 BMW 740. In addition, the cost of maintenance, including insurance, on 2006 BMW 740 would be higher. At 3,999 cc (8 cylinders), 2006 BMW 740 is equipped with a bigger engine. In terms of performance, 2009 BMW Z4 (338 HP @ 7900 RPM) has 36 more horse power than 2006 BMW 740. (302 HP @ 3700 RPM). In normal driving conditions, 2009 BMW Z4 should accelerate faster than 2006 BMW 740. With that said, vehicle weight also plays an important factor in acceleration. 2006 BMW 740 weights approximately 450 kg more than 2009 BMW Z4.
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, 2006 BMW 740 (390 Nm @ 3700 RPM) has 25 more torque (in Nm) than 2009 BMW Z4. (365 Nm @ 4900 RPM). This means 2006 BMW 740 will have an easier job in driving up hills or pulling heavy equipment than 2009 BMW Z4.
Compare all specifications:
| 2009 BMW Z4 | 2006 BMW 740 | |
| Make | BMW | BMW |
| Model | Z4 | 740 |
| Year Released | 2009 | 2006 |
| Body Type | Coupe | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3244 cc | 3999 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 338 HP | 302 HP |
| Engine RPM | 7900 RPM | 3700 RPM |
| Torque | 365 Nm | 390 Nm |
| Torque RPM | 4900 RPM | 3700 RPM |
| Fuel Type | Gasoline - Premium | Gasoline |
| Top Speed | 250 km/hour | 250 km/hour |
| Acceleration 0-100mph | 5 seconds | 6.8 seconds |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1495 kg | 1945 kg |
| Vehicle Length | 4120 mm | 5040 mm |
| Vehicle Width | 1790 mm | 1910 mm |
| Vehicle Height | 1290 mm | 1500 mm |
| Wheelbase Size | 2500 mm | 3000 mm |
| Fuel Consumption Overall | 12.1 L/100km | 11.2 L/100km |
| Fuel Tank Capacity | 60 L | 88 L |
