2009 Alpina Roadster vs. 2007 Infiniti QX56
To start off, 2009 Alpina Roadster is newer by 2 year(s). Which means there will be less support and parts availability for 2007 Infiniti QX56. In addition, the cost of maintenance, including insurance, on 2007 Infiniti QX56 would be higher. At 5,552 cc (8 cylinders), 2007 Infiniti QX56 is equipped with a bigger engine. In terms of performance, 2007 Infiniti QX56 (320 HP @ 4900 RPM) has 24 more horse power than 2009 Alpina Roadster. (296 HP @ 6300 RPM) In normal driving conditions, 2007 Infiniti QX56 should accelerate faster than 2009 Alpina Roadster.
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 Infiniti QX56 (533 Nm @ 3600 RPM) has 171 more torque (in Nm) than 2009 Alpina Roadster. (362 Nm @ 4800 RPM). This means 2007 Infiniti QX56 will have an easier job in driving up hills or pulling heavy equipment than 2009 Alpina Roadster. 2007 Infiniti QX56 has automatic transmission and 2009 Alpina Roadster has manual transmission. 2009 Alpina Roadster will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2007 Infiniti QX56 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2009 Alpina Roadster | 2007 Infiniti QX56 | |
| Make | Alpina | Infiniti |
| Model | Roadster | QX56 |
| Year Released | 2009 | 2007 |
| Body Type | Convertible | SUV |
| Engine Position | Front | Front |
| Engine Size | 3346 cc | 5552 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 296 HP | 320 HP |
| Engine RPM | 6300 RPM | 4900 RPM |
| Torque | 362 Nm | 533 Nm |
| Torque RPM | 4800 RPM | 3600 RPM |
| Fuel Type | Gasoline - Premium | Diesel |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 2 seats | 7 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Length | 4100 mm | 5260 mm |
| Vehicle Width | 1790 mm | 2010 mm |
| Vehicle Height | 1300 mm | 1960 mm |
| Wheelbase Size | 2500 mm | 3140 mm |
| Fuel Consumption Overall | 10 L/100km | 15.7 L/100km |
| Fuel Tank Capacity | 55 L | 106 L |
