2006 BMW Z4 vs. 2007 Infiniti FX
To start off, 2007 Infiniti FX 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 4,494 cc (8 cylinders), 2007 Infiniti FX is equipped with a bigger engine. In terms of performance, 2007 Infiniti FX (320 HP @ 6000 RPM) has 131 more horse power than 2006 BMW Z4. (189 HP @ 6000 RPM) In normal driving conditions, 2007 Infiniti FX should accelerate faster than 2006 BMW Z4.
Because 2007 Infiniti FX is four wheel drive (4WD), it will have significant more traction and grip than 2006 BMW Z4. In wet, icy, snow, or gravel driving conditions, 2007 Infiniti FX will offer significantly more control. 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 Infiniti FX (454 Nm @ 4000 RPM) has 209 more torque (in Nm) than 2006 BMW Z4. (245 Nm @ 3500 RPM). This means 2007 Infiniti FX will have an easier job in driving up hills or pulling heavy equipment than 2006 BMW Z4. 2007 Infiniti FX 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 Infiniti FX will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2006 BMW Z4 | 2007 Infiniti FX | |
| Make | BMW | Infiniti |
| Model | Z4 | FX |
| Year Released | 2006 | 2007 |
| Body Type | Convertible | Crossover |
| Engine Position | Front | Front |
| Engine Size | 2492 cc | 4494 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 189 HP | 320 HP |
| Engine RPM | 6000 RPM | 6000 RPM |
| Torque | 245 Nm | 454 Nm |
| Torque RPM | 3500 RPM | 4000 RPM |
| Engine Bore Size | 84 mm | 93 mm |
| Engine Stroke Size | 75 mm | 83 mm |
| Fuel Type | Gasoline - Premium | Diesel |
| Drive Type | Rear | 4WD |
| Transmission Type | Manual | Automatic |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Length | 4100 mm | 4810 mm |
| Vehicle Width | 1790 mm | 1930 mm |
| Vehicle Height | 1310 mm | 1680 mm |
| Wheelbase Size | 2500 mm | 2860 mm |
| Fuel Consumption Overall | 9 L/100km | 14.7 L/100km |
| Fuel Tank Capacity | 55 L | 90 L |
