2003 Alpina B3 vs. 2007 Infiniti M
To start off, 2007 Infiniti M is newer by 4 year(s). Which means there will be less support and parts availability for 2003 Alpina B3. In addition, the cost of maintenance, including insurance, on 2003 Alpina B3 would be higher. At 3,498 cc (6 cylinders), 2007 Infiniti M is equipped with a bigger engine. In terms of performance, 2003 Alpina B3 (301 HP @ 6200 RPM) has 26 more horse power than 2007 Infiniti M. (275 HP @ 6200 RPM). In normal driving conditions, 2003 Alpina B3 should accelerate faster than 2007 Infiniti M.
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 M (363 Nm @ 4800 RPM) has 1 more torque (in Nm) than 2003 Alpina B3. (362 Nm @ 4800 RPM). This means 2007 Infiniti M will have an easier job in driving up hills or pulling heavy equipment than 2003 Alpina B3.
Compare all specifications:
| 2003 Alpina B3 | 2007 Infiniti M | |
| Make | Alpina | Infiniti |
| Model | B3 | M |
| Year Released | 2003 | 2007 |
| Body Type | Convertible | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3344 cc | 3498 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 301 HP | 275 HP |
| Engine RPM | 6200 RPM | 6200 RPM |
| Torque | 362 Nm | 363 Nm |
| Torque RPM | 4800 RPM | 4800 RPM |
| Engine Compression Ratio | 10.0:1 | 10.3:1 |
| Fuel Type | Gasoline | Diesel |
| Drive Type | Rear | Rear |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Length | 4490 mm | 4900 mm |
| Vehicle Width | 1760 mm | 1800 mm |
| Vehicle Height | 1360 mm | 1520 mm |
| Wheelbase Size | 2730 mm | 2910 mm |
| Fuel Tank Capacity | 63 L | 76 L |
