2005 Infiniti M vs. 2013 BMW 6 series
To start off, 2013 BMW 6 series is newer by 8 year(s). Which means there will be less support and parts availability for 2005 Infiniti M. In addition, the cost of maintenance, including insurance, on 2005 Infiniti M would be higher. At 4,494 cc (8 cylinders), 2005 Infiniti M is equipped with a bigger engine. In terms of performance, 2013 BMW 6 series (437 HP @ 5500 RPM) has 102 more horse power than 2005 Infiniti M. (335 HP @ 6400 RPM) In normal driving conditions, 2013 BMW 6 series should accelerate faster than 2005 Infiniti M. With that said, vehicle weight also plays an important factor in acceleration. 2013 BMW 6 series weights approximately 349 kg more than 2005 Infiniti M. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2013 BMW 6 series is all wheel drive (AWD), it will have significant more traction and grip than 2005 Infiniti M. In wet, icy, snow, or gravel driving conditions, 2013 BMW 6 series 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, 2013 BMW 6 series (649 Nm @ 4500 RPM) has 196 more torque (in Nm) than 2005 Infiniti M. (453 Nm @ 4000 RPM). This means 2013 BMW 6 series will have an easier job in driving up hills or pulling heavy equipment than 2005 Infiniti M.
Compare all specifications:
| 2005 Infiniti M | 2013 BMW 6 series | |
| Make | Infiniti | BMW |
| Model | M | 6 series |
| Year Released | 2005 | 2013 |
| Body Type | Sedan | Coupe |
| Engine Position | Front | Front |
| Engine Size | 4494 cc | 4395 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 335 HP | 437 HP |
| Engine RPM | 6400 RPM | 5500 RPM |
| Torque | 453 Nm | 649 Nm |
| Torque RPM | 4000 RPM | 4500 RPM |
| Engine Bore Size | 93 mm | 89 mm |
| Engine Stroke Size | 82.7 mm | 88 mm |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | AWD |
| Transmission Type | Automatic | 8-speed automatic |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1740 kg | 2089 kg |
| Vehicle Length | 5020 mm | 5009 mm |
| Vehicle Width | 1780 mm | 2081 mm |
| Vehicle Height | 1470 mm | 1392 mm |
| Wheelbase Size | 2810 mm | 2968 mm |
| Fuel Tank Capacity | 79 L | 70 L |
