2006 Alpina Roadster vs. 2008 Infiniti M
To start off, 2008 Infiniti M is newer by 2 year(s). Which means there will be less support and parts availability for 2006 Alpina Roadster. In addition, the cost of maintenance, including insurance, on 2006 Alpina Roadster would be higher. At 4,493 cc (8 cylinders), 2008 Infiniti M is equipped with a bigger engine. In terms of performance, 2008 Infiniti M (325 HP @ 6400 RPM) has 29 more horse power than 2006 Alpina Roadster. (296 HP @ 6300 RPM) In normal driving conditions, 2008 Infiniti M should accelerate faster than 2006 Alpina Roadster. With that said, vehicle weight also plays an important factor in acceleration. 2008 Infiniti M weights approximately 442 kg more than 2006 Alpina Roadster. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2008 Infiniti M is four wheel drive (4WD), it will have significant more traction and grip than 2006 Alpina Roadster. In wet, icy, snow, or gravel driving conditions, 2008 Infiniti M 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, 2008 Infiniti M (456 Nm @ 4000 RPM) has 94 more torque (in Nm) than 2006 Alpina Roadster. (362 Nm @ 4800 RPM). This means 2008 Infiniti M will have an easier job in driving up hills or pulling heavy equipment than 2006 Alpina Roadster. 2008 Infiniti M has automatic transmission and 2006 Alpina Roadster has manual transmission. 2006 Alpina Roadster will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2008 Infiniti M will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2006 Alpina Roadster | 2008 Infiniti M | |
| Make | Alpina | Infiniti |
| Model | Roadster | M |
| Year Released | 2006 | 2008 |
| Body Type | Convertible | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3346 cc | 4493 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 296 HP | 325 HP |
| Engine RPM | 6300 RPM | 6400 RPM |
| Torque | 362 Nm | 456 Nm |
| Torque RPM | 4800 RPM | 4000 RPM |
| Drive Type | Rear | 4WD |
| Transmission Type | Manual | Automatic |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1395 kg | 1837 kg |
| Vehicle Length | 4100 mm | 4900 mm |
| Vehicle Width | 1790 mm | 1800 mm |
| Vehicle Height | 1310 mm | 1520 mm |
| Wheelbase Size | 2500 mm | 2910 mm |
| Fuel Consumption Overall | 11.7 L/100km | 13.1 L/100km |
| Fuel Tank Capacity | 55 L | 76 L |
