2009 Alpina Roadster vs. 2013 Infiniti FX
To start off, 2013 Infiniti FX is newer by 4 year(s). Which means there will be less support and parts availability for 2009 Alpina Roadster. In addition, the cost of maintenance, including insurance, on 2009 Alpina Roadster would be higher. At 3,696 cc (6 cylinders), 2013 Infiniti FX is equipped with a bigger engine. In terms of performance, 2013 Infiniti FX (321 HP @ 7000 RPM) has 25 more horse power than 2009 Alpina Roadster. (296 HP @ 6300 RPM) In normal driving conditions, 2013 Infiniti FX should accelerate faster than 2009 Alpina Roadster. With that said, vehicle weight also plays an important factor in acceleration. 2013 Infiniti FX weights approximately 548 kg more than 2009 Alpina Roadster. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2013 Infiniti FX is all wheel drive (AWD), it will have significant more traction and grip than 2009 Alpina Roadster. In wet, icy, snow, or gravel driving conditions, 2013 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, both vehicles can yield 362 Nm of torque. So under normal driving conditions, the ability to climb up hills and pull heavy equipment should be relatively similar for both vehicles. 2013 Infiniti FX 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. 2013 Infiniti FX will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2009 Alpina Roadster | 2013 Infiniti FX | |
| Make | Alpina | Infiniti |
| Model | Roadster | FX |
| Year Released | 2009 | 2013 |
| Body Type | Convertible | Crossover |
| Engine Position | Front | Front |
| Engine Size | 3346 cc | 3696 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 296 HP | 321 HP |
| Engine RPM | 6300 RPM | 7000 RPM |
| Torque | 362 Nm | 362 Nm |
| Torque RPM | 4800 RPM | 5200 RPM |
| Engine Bore Size | 87 mm | 95 mm |
| Engine Stroke Size | 93.8 mm | 86 mm |
| Fuel Type | Gasoline - Premium | Natural Gas (CNG) |
| Drive Type | Rear | AWD |
| Transmission Type | Manual | 6-speed shiftable automatic |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1395 kg | 1943 kg |
| Vehicle Length | 4100 mm | 4859 mm |
| Vehicle Width | 1790 mm | 1928 mm |
| Vehicle Height | 1300 mm | 1680 mm |
| Wheelbase Size | 2500 mm | 2885 mm |
