1972 AMC Ambassador vs. 2009 Infiniti QX56
To start off, 2009 Infiniti QX56 is newer by 37 year(s). Which means there will be less support and parts availability for 1972 AMC Ambassador. In addition, the cost of maintenance, including insurance, on 1972 AMC Ambassador would be higher. At 6,571 cc (8 cylinders), 1972 AMC Ambassador is equipped with a bigger engine. In terms of performance, 2009 Infiniti QX56 (320 HP @ 5200 RPM) has 65 more horse power than 1972 AMC Ambassador. (255 HP @ 4600 RPM) In normal driving conditions, 2009 Infiniti QX56 should accelerate faster than 1972 AMC Ambassador. With that said, vehicle weight also plays an important factor in acceleration. 1972 AMC Ambassador weights approximately 387 kg more than 2009 Infiniti QX56.
Because 2009 Infiniti QX56 is four wheel drive (4WD), it will have significant more traction and grip than 1972 AMC Ambassador. In wet, icy, snow, or gravel driving conditions, 2009 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, 2009 Infiniti QX56 (533 Nm @ 3400 RPM) has 65 more torque (in Nm) than 1972 AMC Ambassador. (468 Nm @ 3300 RPM). This means 2009 Infiniti QX56 will have an easier job in driving up hills or pulling heavy equipment than 1972 AMC Ambassador.
Compare all specifications:
| 1972 AMC Ambassador | 2009 Infiniti QX56 | |
| Make | AMC | Infiniti |
| Model | Ambassador | QX56 |
| Year Released | 1972 | 2009 |
| Engine Position | Front | Front |
| Engine Size | 6571 cc | 5552 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Horse Power | 255 HP | 320 HP |
| Engine RPM | 4600 RPM | 5200 RPM |
| Torque | 468 Nm | 533 Nm |
| Torque RPM | 3300 RPM | 3400 RPM |
| Engine Compression Ratio | 8.5:1 | 10.3:1 |
| Drive Type | Rear | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 7 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1707 kg | 1320 kg |
| Vehicle Length | 5370 mm | 5260 mm |
| Vehicle Width | 1970 mm | 2010 mm |
| Vehicle Height | 1420 mm | 2010 mm |
| Wheelbase Size | 3110 mm | 3140 mm |
