2006 BMW Z4 vs. 2004 BMW Z4
To start off, 2006 BMW Z4 is newer by 2 year(s). Which means there will be less support and parts availability for 2004 BMW Z4. In addition, the cost of maintenance, including insurance, on 2004 BMW Z4 would be higher. At 2,494 cc (6 cylinders), 2004 BMW Z4 is equipped with a bigger engine. In terms of performance, 2004 BMW Z4 (185 HP @ 6000 RPM) has 37 more horse power than 2006 BMW Z4. (148 HP @ 6200 RPM) In normal driving conditions, 2004 BMW Z4 should accelerate faster than 2006 BMW Z4. With that said, vehicle weight also plays an important factor in acceleration. 2006 BMW Z4 weights approximately 30 kg more than 2004 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, 2004 BMW Z4 (245 Nm @ 3500 RPM) has 45 more torque (in Nm) than 2006 BMW Z4. (200 Nm @ 3600 RPM). This means 2004 BMW Z4 will have an easier job in driving up hills or pulling heavy equipment than 2006 BMW Z4. 2004 BMW Z4 has automatic transmission and 2006 BMW Z4 has manual transmission. 2006 BMW Z4 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2004 BMW Z4 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2006 BMW Z4 | 2004 BMW Z4 | |
| Make | BMW | BMW |
| Model | Z4 | Z4 |
| Year Released | 2006 | 2004 |
| Body Type | Convertible | Convertible |
| Engine Position | Front | Front |
| Engine Size | 1995 cc | 2494 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 148 HP | 185 HP |
| Engine RPM | 6200 RPM | 6000 RPM |
| Torque | 200 Nm | 245 Nm |
| Torque RPM | 3600 RPM | 3500 RPM |
| Engine Bore Size | 84 mm | 84 mm |
| Engine Stroke Size | 90 mm | 75 mm |
| Engine Compression Ratio | 10.5:1 | 11.0:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 220 km/hour | 235 km/hour |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 2 seats | 2 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1326 kg | 1296 kg |
| Vehicle Length | 4100 mm | 4100 mm |
| Vehicle Width | 1790 mm | 1790 mm |
| Vehicle Height | 1310 mm | 1300 mm |
| Wheelbase Size | 2500 mm | 2500 mm |
| Fuel Consumption | 5.6 L/100km | 8.4 L/100km |
| Fuel Consumption Overall | 7.5 L/100km | 10.2 L/100km |
| Fuel Tank Capacity | 55 L | 55 L |
