2004 BMW 545 vs. 2009 BMW Z4
To start off, 2009 BMW Z4 is newer by 5 year(s). Which means there will be less support and parts availability for 2004 BMW 545. In addition, the cost of maintenance, including insurance, on 2004 BMW 545 would be higher. At 4,398 cc (8 cylinders), 2004 BMW 545 is equipped with a bigger engine. In terms of performance, 2004 BMW 545 (315 HP @ 7750 RPM) has 100 more horse power than 2009 BMW Z4. (215 HP @ 6500 RPM). In normal driving conditions, 2004 BMW 545 should accelerate faster than 2009 BMW Z4. With that said, vehicle weight also plays an important factor in acceleration. 2004 BMW 545 weights approximately 490 kg more than 2009 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, 2004 BMW 545 (447 Nm) has 197 more torque (in Nm) than 2009 BMW Z4. (250 Nm). This means 2004 BMW 545 will have an easier job in driving up hills or pulling heavy equipment than 2009 BMW Z4.
Compare all specifications:
| 2004 BMW 545 | 2009 BMW Z4 | |
| Make | BMW | BMW |
| Model | 545 | Z4 |
| Year Released | 2004 | 2009 |
| Body Type | Sedan | Convertible |
| Engine Position | Front | Front |
| Engine Size | 4398 cc | 2494 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 315 HP | 215 HP |
| Engine RPM | 7750 RPM | 6500 RPM |
| Torque | 447 Nm | 250 Nm |
| Engine Compression Ratio | 10.5:1 | 10.5:1 |
| Drive Type | Rear | Rear |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1780 kg | 1290 kg |
| Vehicle Length | 4850 mm | 4100 mm |
| Vehicle Width | 1850 mm | 1790 mm |
| Vehicle Height | 1480 mm | 1310 mm |
| Wheelbase Size | 2830 mm | 2500 mm |
| Fuel Consumption Overall | 11.8 L/100km | 9.7 L/100km |
| Fuel Tank Capacity | 70 L | 55 L |
