1984 BMW 725 vs. 2008 Infiniti QX56
To start off, 2008 Infiniti QX56 is newer by 24 year(s). Which means there will be less support and parts availability for 1984 BMW 725. In addition, the cost of maintenance, including insurance, on 1984 BMW 725 would be higher. At 5,550 cc (8 cylinders), 2008 Infiniti QX56 is equipped with a bigger engine. In terms of performance, 2008 Infiniti QX56 (320 HP @ 5200 RPM) has 172 more horse power than 1984 BMW 725. (148 HP @ 5500 RPM) In normal driving conditions, 2008 Infiniti QX56 should accelerate faster than 1984 BMW 725.
Because 2008 Infiniti QX56 is four wheel drive (4WD), it will have significant more traction and grip than 1984 BMW 725. In wet, icy, snow, or gravel driving conditions, 2008 Infiniti QX56 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, 2008 Infiniti QX56 (533 Nm @ 3400 RPM) has 318 more torque (in Nm) than 1984 BMW 725. (215 Nm @ 4000 RPM). This means 2008 Infiniti QX56 will have an easier job in driving up hills or pulling heavy equipment than 1984 BMW 725.
Compare all specifications:
| 1984 BMW 725 | 2008 Infiniti QX56 | |
| Make | BMW | Infiniti |
| Model | 725 | QX56 |
| Year Released | 1984 | 2008 |
| Body Type | Sedan | SUV |
| Engine Position | Front | Front |
| Engine Size | 2495 cc | 5550 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 148 HP | 320 HP |
| Engine RPM | 5500 RPM | 5200 RPM |
| Torque | 215 Nm | 533 Nm |
| Torque RPM | 4000 RPM | 3400 RPM |
| Drive Type | Rear | 4WD |
| Number of Seats | 5 seats | 7 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Length | 4870 mm | 5260 mm |
| Vehicle Width | 1810 mm | 2030 mm |
| Vehicle Height | 1440 mm | 1960 mm |
| Wheelbase Size | 2810 mm | 3140 mm |
