2007 BMW Z4 vs. 2003 BMW M3
To start off, 2007 BMW Z4 is newer by 4 year(s). Which means there will be less support and parts availability for 2003 BMW M3. In addition, the cost of maintenance, including insurance, on 2003 BMW M3 would be higher. At 3,246 cc (6 cylinders), 2007 BMW Z4 is equipped with a bigger engine. In terms of performance, 2007 BMW Z4 (338 HP @ 7900 RPM) has 98 more horse power than 2003 BMW M3. (240 HP @ 6000 RPM). In normal driving conditions, 2007 BMW Z4 should accelerate faster than 2003 BMW M3. With that said, vehicle weight also plays an important factor in acceleration. 2007 BMW Z4 weights approximately 43 kg more than 2003 BMW M3. 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, 2007 BMW Z4 (365 Nm @ 4900 RPM) has 65 more torque (in Nm) than 2003 BMW M3. (300 Nm @ 4250 RPM). This means 2007 BMW Z4 will have an easier job in driving up hills or pulling heavy equipment than 2003 BMW M3.
Compare all specifications:
| 2007 BMW Z4 | 2003 BMW M3 | |
| Make | BMW | BMW |
| Model | Z4 | M3 |
| Year Released | 2007 | 2003 |
| Body Type | Convertible | Coupe |
| Engine Position | Front | Front |
| Engine Size | 3246 cc | 2993 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 338 HP | 240 HP |
| Engine RPM | 7900 RPM | 6000 RPM |
| Torque | 365 Nm | 300 Nm |
| Torque RPM | 4900 RPM | 4250 RPM |
| Engine Compression Ratio | 11.5:1 | 10.5:1 |
| Top Speed | 250 km/hour | 220 km/hour |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 2 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1485 kg | 1442 kg |
| Vehicle Length | 4120 mm | 4440 mm |
| Vehicle Width | 1310 mm | 1720 mm |
| Vehicle Height | 1790 mm | 1340 mm |
| Wheelbase Size | 2500 mm | 2730 mm |
| Fuel Tank Capacity | 70 L | 65 L |
