2004 BMW 545 vs. 2011 BMW Z4
To start off, 2011 BMW Z4 is newer by 7 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, 2011 BMW Z4 (335 HP @ 5900 RPM) has 20 more horse power than 2004 BMW 545. (315 HP @ 7750 RPM) In normal driving conditions, 2011 BMW Z4 should accelerate faster than 2004 BMW 545. With that said, vehicle weight also plays an important factor in acceleration. 2004 BMW 545 weights approximately 170 kg more than 2011 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, 2011 BMW Z4 (450 Nm) has 3 more torque (in Nm) than 2004 BMW 545. (447 Nm). This means 2011 BMW Z4 will have an easier job in driving up hills or pulling heavy equipment than 2004 BMW 545.
Compare all specifications:
| 2004 BMW 545 | 2011 BMW Z4 | |
| Make | BMW | BMW |
| Model | 545 | Z4 |
| Year Released | 2004 | 2011 |
| Body Type | Sedan | Convertible |
| Engine Position | Front | Front |
| Engine Size | 4398 cc | 3000 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 315 HP | 335 HP |
| Engine RPM | 7750 RPM | 5900 RPM |
| Torque | 447 Nm | 450 Nm |
| Drive Type | Rear | Rear |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1780 kg | 1610 kg |
| Vehicle Length | 4850 mm | 4242 mm |
| Vehicle Width | 1850 mm | 1791 mm |
| Vehicle Height | 1480 mm | 1285 mm |
| Wheelbase Size | 2830 mm | 2497 mm |
| Fuel Consumption | 9.4 L/100km | 9.8 L/100km |
| Fuel Consumption City | 13.8 L/100km | 13.8 L/100km |
| Fuel Tank Capacity | 70 L | 55 L |
