2007 BMW Convertible vs. 2008 Infiniti QX56
To start off, 2008 Infiniti QX56 is newer by 1 year(s). Which means there will be less support and parts availability for 2007 BMW Convertible. In addition, the cost of maintenance, including insurance, on 2007 BMW Convertible would be higher. At 5,550 cc (8 cylinders), 2008 Infiniti QX56 is equipped with a bigger engine. In terms of performance, 2007 BMW Convertible (362 HP @ 6300 RPM) has 42 more horse power than 2008 Infiniti QX56. (320 HP @ 5200 RPM). In normal driving conditions, 2007 BMW Convertible should accelerate faster than 2008 Infiniti QX56. With that said, vehicle weight also plays an important factor in acceleration. 2007 BMW Convertible weights approximately 530 kg more than 2008 Infiniti QX56. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 2008 Infiniti QX56 (533 Nm @ 3400 RPM) has 43 more torque (in Nm) than 2007 BMW Convertible. (490 Nm @ 3600 RPM). This means 2008 Infiniti QX56 will have an easier job in driving up hills or pulling heavy equipment than 2007 BMW Convertible.
Compare all specifications:
| 2007 BMW Convertible | 2008 Infiniti QX56 | |
| Make | BMW | Infiniti |
| Model | Convertible | QX56 |
| Year Released | 2007 | 2008 |
| Body Type | Convertible | SUV |
| Engine Position | Front | Front |
| Engine Size | 4799 cc | 5550 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 362 HP | 320 HP |
| Engine RPM | 6300 RPM | 5200 RPM |
| Torque | 490 Nm | 533 Nm |
| Torque RPM | 3600 RPM | 3400 RPM |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 4 seats | 7 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1850 kg | 1320 kg |
| Vehicle Length | 4830 mm | 5260 mm |
| Vehicle Width | 1380 mm | 2030 mm |
| Vehicle Height | 1860 mm | 1960 mm |
| Wheelbase Size | 2790 mm | 3140 mm |
| Fuel Tank Capacity | 70 L | 106 L |
