2006 BMW 650 vs. 2003 Infiniti M
To start off, 2006 BMW 650 is newer by 3 year(s). Which means there will be less support and parts availability for 2003 Infiniti M. In addition, the cost of maintenance, including insurance, on 2003 Infiniti M would be higher. At 4,801 cc (8 cylinders), 2006 BMW 650 is equipped with a bigger engine. In terms of performance, 2006 BMW 650 (360 HP @ 6300 RPM) has 20 more horse power than 2003 Infiniti M. (340 HP @ 6400 RPM). In normal driving conditions, 2006 BMW 650 should accelerate faster than 2003 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, 2006 BMW 650 (488 Nm @ 3400 RPM) has 37 more torque (in Nm) than 2003 Infiniti M. (451 Nm @ 4000 RPM). This means 2006 BMW 650 will have an easier job in driving up hills or pulling heavy equipment than 2003 Infiniti M.
Compare all specifications:
| 2006 BMW 650 | 2003 Infiniti M | |
| Make | BMW | Infiniti |
| Model | 650 | M |
| Year Released | 2006 | 2003 |
| Body Type | Coupe | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4801 cc | 4494 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 360 HP | 340 HP |
| Engine RPM | 6300 RPM | 6400 RPM |
| Torque | 488 Nm | 451 Nm |
| Torque RPM | 3400 RPM | 4000 RPM |
| Engine Bore Size | 93 mm | 93 mm |
| Engine Stroke Size | 88.3 mm | 82.7 mm |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | Rear | Rear |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Length | 4840 mm | 5020 mm |
| Vehicle Width | 1860 mm | 1780 mm |
| Vehicle Height | 1380 mm | 1470 mm |
| Wheelbase Size | 2790 mm | 2810 mm |
| Fuel Tank Capacity | 70 L | 79 L |
