1981 BMW 725 vs. 2006 Infiniti M
To start off, 2006 Infiniti M is newer by 25 year(s). Which means there will be less support and parts availability for 1981 BMW 725. In addition, the cost of maintenance, including insurance, on 1981 BMW 725 would be higher. At 4,494 cc (8 cylinders), 2006 Infiniti M is equipped with a bigger engine. In terms of performance, 2006 Infiniti M (335 HP @ 6400 RPM) has 187 more horse power than 1981 BMW 725. (148 HP @ 5500 RPM) In normal driving conditions, 2006 Infiniti M should accelerate faster than 1981 BMW 725.
Because 2006 Infiniti M is four wheel drive (4WD), it will have significant more traction and grip than 1981 BMW 725. In wet, icy, snow, or gravel driving conditions, 2006 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, 2006 Infiniti M (461 Nm @ 4000 RPM) has 246 more torque (in Nm) than 1981 BMW 725. (215 Nm @ 4000 RPM). This means 2006 Infiniti M will have an easier job in driving up hills or pulling heavy equipment than 1981 BMW 725.
Compare all specifications:
1981 BMW 725 | 2006 Infiniti M | |
Make | BMW | Infiniti |
Model | 725 | M |
Year Released | 1981 | 2006 |
Body Type | Sedan | Sedan |
Engine Position | Front | Front |
Engine Size | 2493 cc | 4494 cc |
Engine Cylinders | 6 cylinders | 8 cylinders |
Engine Type | in-line | V |
Valves per Cylinder | 2 valves | 4 valves |
Horse Power | 148 HP | 335 HP |
Engine RPM | 5500 RPM | 6400 RPM |
Torque | 215 Nm | 461 Nm |
Torque RPM | 4000 RPM | 4000 RPM |
Engine Compression Ratio | 9.6:1 | 10.5:1 |
Fuel Type | Gasoline | Gasoline |
Drive Type | Rear | 4WD |
Number of Seats | 5 seats | 5 seats |
Number of Doors | 4 doors | 4 doors |
Vehicle Width | 1810 mm | 140 mm |
Vehicle Height | 1440 mm | 140 mm |