1981 BMW 725 vs. 2013 Infiniti JX
To start off, 2013 Infiniti JX is newer by 32 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 3,500 cc (4 cylinders), 2013 Infiniti JX is equipped with a bigger engine. In terms of performance, 2013 Infiniti JX (261 HP @ 6400 RPM) has 113 more horse power than 1981 BMW 725. (148 HP @ 5500 RPM) In normal driving conditions, 2013 Infiniti JX should accelerate faster than 1981 BMW 725.
Because 2013 Infiniti JX is all wheel drive (AWD), it will have significant more traction and grip than 1981 BMW 725. In wet, icy, snow, or gravel driving conditions, 2013 Infiniti JX 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 Infiniti JX (336 Nm @ 4400 RPM) has 121 more torque (in Nm) than 1981 BMW 725. (215 Nm @ 4000 RPM). This means 2013 Infiniti JX will have an easier job in driving up hills or pulling heavy equipment than 1981 BMW 725.
Compare all specifications:
| 1981 BMW 725 | 2013 Infiniti JX | |
| Make | BMW | Infiniti |
| Model | 725 | JX |
| Year Released | 1981 | 2013 |
| Body Type | Sedan | Crossover |
| Engine Position | Front | Front |
| Engine Size | 2493 cc | 3500 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 148 HP | 261 HP |
| Engine RPM | 5500 RPM | 6400 RPM |
| Torque | 215 Nm | 336 Nm |
| Torque RPM | 4000 RPM | 4400 RPM |
| Engine Bore Size | 86 mm | 95 mm |
| Engine Stroke Size | 71.6 mm | 81 mm |
| Fuel Type | Gasoline | Natural Gas (CNG) |
| Drive Type | Rear | AWD |
| Number of Seats | 5 seats | 7 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Length | 4870 mm | 4989 mm |
| Vehicle Width | 1810 mm | 1961 mm |
| Vehicle Height | 1440 mm | 1722 mm |
| Wheelbase Size | 2810 mm | 2901 mm |
