2006 BMW Z4 vs. 2007 Proton Gen
To start off, 2007 Proton Gen is newer by 1 year(s). Which means there will be less support and parts availability for 2006 BMW Z4. In addition, the cost of maintenance, including insurance, on 2006 BMW Z4 would be higher. At 2,492 cc (6 cylinders), 2006 BMW Z4 is equipped with a bigger engine. In terms of performance, 2006 BMW Z4 (189 HP @ 6000 RPM) has 80 more horse power than 2007 Proton Gen. (109 HP @ 6000 RPM). In normal driving conditions, 2006 BMW Z4 should accelerate faster than 2007 Proton Gen.
Because 2006 BMW Z4 is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 2006 BMW Z4. However, in wet, icy, snow, or gravel driving conditions, 2007 Proton Gen, being front wheel drive (FWD), will offer much better control with better grip. 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, 2006 BMW Z4 (245 Nm @ 3500 RPM) has 97 more torque (in Nm) than 2007 Proton Gen. (148 Nm @ 4000 RPM). This means 2006 BMW Z4 will have an easier job in driving up hills or pulling heavy equipment than 2007 Proton Gen. 2007 Proton Gen 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. 2007 Proton Gen will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2006 BMW Z4 | 2007 Proton Gen | |
| Make | BMW | Proton |
| Model | Z4 | Gen |
| Year Released | 2006 | 2007 |
| Engine Size | 2492 cc | 1596 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 189 HP | 109 HP |
| Engine RPM | 6000 RPM | 6000 RPM |
| Torque | 245 Nm | 148 Nm |
| Torque RPM | 3500 RPM | 4000 RPM |
| Engine Bore Size | 84 mm | 76 mm |
| Engine Stroke Size | 75 mm | 88 mm |
| Engine Compression Ratio | 11.0:1 | 10.0:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Top Speed | 235 km/hour | 185 km/hour |
| Acceleration 0-100mph | 7 seconds | 13 seconds |
| Drive Type | Rear | Front |
| Transmission Type | Manual | Automatic |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Length | 4100 mm | 4320 mm |
| Vehicle Width | 1790 mm | 1730 mm |
| Vehicle Height | 1310 mm | 1440 mm |
| Wheelbase Size | 2500 mm | 2610 mm |
| Fuel Consumption Overall | 9 L/100km | 6.2 L/100km |
| Fuel Tank Capacity | 55 L | 40 L |
