2006 Infiniti QX56 vs. 1991 Morgan Plus 4
To start off, 2006 Infiniti QX56 is newer by 15 year(s). Which means there will be less support and parts availability for 1991 Morgan Plus 4. In addition, the cost of maintenance, including insurance, on 1991 Morgan Plus 4 would be higher. At 5,555 cc (8 cylinders), 2006 Infiniti QX56 is equipped with a bigger engine. In terms of performance, 2006 Infiniti QX56 (315 HP @ 4900 RPM) has 178 more horse power than 1991 Morgan Plus 4. (137 HP @ 6000 RPM). In normal driving conditions, 2006 Infiniti QX56 should accelerate faster than 1991 Morgan Plus 4. With that said, vehicle weight also plays an important factor in acceleration. 2006 Infiniti QX56 weights approximately 400 kg more than 1991 Morgan Plus 4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2006 Infiniti QX56 is four wheel drive (4WD), it will have significant more traction and grip than 1991 Morgan Plus 4. In wet, icy, snow, or gravel driving conditions, 2006 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, 2006 Infiniti QX56 (529 Nm @ 3600 RPM) has 352 more torque (in Nm) than 1991 Morgan Plus 4. (177 Nm @ 4500 RPM). This means 2006 Infiniti QX56 will have an easier job in driving up hills or pulling heavy equipment than 1991 Morgan Plus 4. 2006 Infiniti QX56 has automatic transmission and 1991 Morgan Plus 4 has manual transmission. 1991 Morgan Plus 4 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2006 Infiniti QX56 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2006 Infiniti QX56 | 1991 Morgan Plus 4 | |
| Make | Infiniti | Morgan |
| Model | QX56 | Plus 4 |
| Year Released | 2006 | 1991 |
| Body Type | SUV | Convertible |
| Engine Position | Front | Front |
| Engine Size | 5555 cc | 1994 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 315 HP | 137 HP |
| Engine RPM | 4900 RPM | 6000 RPM |
| Torque | 529 Nm | 177 Nm |
| Torque RPM | 3600 RPM | 4500 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Manual |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1320 kg | 920 kg |
| Vehicle Length | 5260 mm | 3900 mm |
| Vehicle Width | 2010 mm | 1510 mm |
| Vehicle Height | 1980 mm | 1280 mm |
| Wheelbase Size | 3140 mm | 2500 mm |
