2005 BMW 318 vs. 2007 BMW Z4
To start off, 2007 BMW Z4 is newer by 2 year(s). Which means there will be less support and parts availability for 2005 BMW 318. In addition, the cost of maintenance, including insurance, on 2005 BMW 318 would be higher. At 2,492 cc (6 cylinders), 2007 BMW Z4 is equipped with a bigger engine. In terms of performance, 2007 BMW Z4 (189 HP @ 6000 RPM) has 48 more horse power than 2005 BMW 318. (141 HP @ 6000 RPM) In normal driving conditions, 2007 BMW Z4 should accelerate faster than 2005 BMW 318. With that said, vehicle weight also plays an important factor in acceleration. 2005 BMW 318 weights approximately 63 kg more than 2007 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, 2007 BMW Z4 (245 Nm @ 3500 RPM) has 45 more torque (in Nm) than 2005 BMW 318. (200 Nm @ 3750 RPM). This means 2007 BMW Z4 will have an easier job in driving up hills or pulling heavy equipment than 2005 BMW 318.
Compare all specifications:
| 2005 BMW 318 | 2007 BMW Z4 | |
| Make | BMW | BMW |
| Model | 318 | Z4 |
| Year Released | 2005 | 2007 |
| Body Type | Sedan | Convertible |
| Engine Position | Front | Front |
| Engine Size | 1995 cc | 2492 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 141 HP | 189 HP |
| Engine RPM | 6000 RPM | 6000 RPM |
| Torque | 200 Nm | 245 Nm |
| Torque RPM | 3750 RPM | 3500 RPM |
| Engine Bore Size | 84 mm | 84 mm |
| Engine Stroke Size | 90 mm | 75 mm |
| Engine Compression Ratio | 10.2:1 | 11.0:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 218 km/hour | 235 km/hour |
| Acceleration 0-100mph | 9.3 seconds | 7 seconds |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1398 kg | 1335 kg |
| Vehicle Length | 4480 mm | 4100 mm |
| Vehicle Width | 1750 mm | 1790 mm |
| Vehicle Height | 1420 mm | 1310 mm |
| Wheelbase Size | 2730 mm | 2500 mm |
| Fuel Consumption Overall | 7.4 L/100km | 9 L/100km |
| Fuel Tank Capacity | 63 L | 55 L |
