2005 BMW 645 vs. 2008 BMW Z4
To start off, 2008 BMW Z4 is newer by 3 year(s). Which means there will be less support and parts availability for 2005 BMW 645. In addition, the cost of maintenance, including insurance, on 2005 BMW 645 would be higher. At 4,392 cc (8 cylinders), 2005 BMW 645 is equipped with a bigger engine. With that said, vehicle weight also plays an important factor in acceleration. 2005 BMW 645 weights approximately 605 kg more than 2008 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, 2005 BMW 645 (447 Nm @ 3600 RPM) has 132 more torque (in Nm) than 2008 BMW Z4. (315 Nm @ 2750 RPM). This means 2005 BMW 645 will have an easier job in driving up hills or pulling heavy equipment than 2008 BMW Z4.
Compare all specifications:
2005 BMW 645 | 2008 BMW Z4 | |
Make | BMW | BMW |
Model | 645 | Z4 |
Year Released | 2005 | 2008 |
Body Type | Convertible | Convertible |
Engine Position | Front | Front |
Engine Size | 4392 cc | 2979 cc |
Engine Cylinders | 8 cylinders | 6 cylinders |
Engine Type | V | in-line |
Valves per Cylinder | 4 valves | 4 valves |
Horse Power | 326 HP | 0 HP |
Torque | 447 Nm | 315 Nm |
Torque RPM | 3600 RPM | 2750 RPM |
Fuel Type | Gasoline - Premium | Gasoline |
Top Speed | 250 km/hour | 250 km/hour |
Acceleration 0-100mph | 6.1 seconds | 5.9 seconds |
Drive Type | Rear | Rear |
Transmission Type | Manual | Manual |
Number of Seats | 4 seats | 2 seats |
Number of Doors | 2 doors | 2 doors |
Vehicle Weight | 1895 kg | 1290 kg |
Vehicle Length | 4830 mm | 4870 mm |
Vehicle Height | 1380 mm | 1480 mm |
Wheelbase Size | 2890 mm | 2500 mm |
Fuel Consumption Overall | 12.8 L/100km | 9.3 L/100km |
Fuel Tank Capacity | 70 L | 55 L |