2004 BMW Z4 vs. 2004 BMW 730
To start off, both 2004 BMW Z4 and 2004 BMW 730 were released in the same year (2004). Therefore the support and the availability on parts for both vehicles should be relatively similar. At 2,979 cc (6 cylinders), 2004 BMW 730 is equipped with a bigger engine. In terms of performance, 2004 BMW 730 (225 HP @ 6000 RPM) has 57 more horse power than 2004 BMW Z4. (168 HP @ 6250 RPM) In normal driving conditions, 2004 BMW 730 should accelerate faster than 2004 BMW Z4. With that said, vehicle weight also plays an important factor in acceleration. 2004 BMW 730 weights approximately 465 kg more than 2004 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 730 (300 Nm @ 3500 RPM) has 90 more torque (in Nm) than 2004 BMW Z4. (210 Nm @ 3500 RPM). This means 2004 BMW 730 will have an easier job in driving up hills or pulling heavy equipment than 2004 BMW Z4. 2004 BMW 730 has automatic transmission and 2004 BMW Z4 has manual transmission. 2004 BMW Z4 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2004 BMW 730 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2004 BMW Z4 | 2004 BMW 730 | |
| Make | BMW | BMW |
| Model | Z4 | 730 |
| Year Released | 2004 | 2004 |
| Body Type | Convertible | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2171 cc | 2979 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 168 HP | 225 HP |
| Engine RPM | 6250 RPM | 6000 RPM |
| Torque | 210 Nm | 300 Nm |
| Torque RPM | 3500 RPM | 3500 RPM |
| Engine Compression Ratio | 10.8:1 | 10.2:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1325 kg | 1790 kg |
| Vehicle Length | 4100 mm | 5040 mm |
| Vehicle Width | 1790 mm | 1910 mm |
| Vehicle Height | 1310 mm | 1500 mm |
| Wheelbase Size | 2500 mm | 3000 mm |
| Fuel Tank Capacity | 55 L | 63 L |
