2009 Infiniti QX56 vs. 2002 Proton 400
To start off, 2009 Infiniti QX56 is newer by 7 year(s). Which means there will be less support and parts availability for 2002 Proton 400. In addition, the cost of maintenance, including insurance, on 2002 Proton 400 would be higher. At 5,552 cc (8 cylinders), 2009 Infiniti QX56 is equipped with a bigger engine. In terms of performance, 2009 Infiniti QX56 (320 HP @ 5200 RPM) has 246 more horse power than 2002 Proton 400. (74 HP @ 6000 RPM). In normal driving conditions, 2009 Infiniti QX56 should accelerate faster than 2002 Proton 400. With that said, vehicle weight also plays an important factor in acceleration. 2009 Infiniti QX56 weights approximately 324 kg more than 2002 Proton 400. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2009 Infiniti QX56 is four wheel drive (4WD), it will have significant more traction and grip than 2002 Proton 400. 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 425 more torque (in Nm) than 2002 Proton 400. (108 Nm @ 3000 RPM). This means 2009 Infiniti QX56 will have an easier job in driving up hills or pulling heavy equipment than 2002 Proton 400. 2009 Infiniti QX56 has automatic transmission and 2002 Proton 400 has manual transmission. 2002 Proton 400 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2009 Infiniti QX56 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2009 Infiniti QX56 | 2002 Proton 400 | |
| Make | Infiniti | Proton |
| Model | QX56 | 400 |
| Year Released | 2009 | 2002 |
| Engine Position | Front | Front |
| Engine Size | 5552 cc | 1299 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 3 valves |
| Horse Power | 320 HP | 74 HP |
| Engine RPM | 5200 RPM | 6000 RPM |
| Torque | 533 Nm | 108 Nm |
| Torque RPM | 3400 RPM | 3000 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | 4WD | Front |
| Transmission Type | Automatic | Manual |
| Vehicle Weight | 1320 kg | 996 kg |
| Vehicle Length | 5260 mm | 4280 mm |
| Vehicle Width | 2010 mm | 1700 mm |
| Vehicle Height | 2010 mm | 1390 mm |
| Wheelbase Size | 3140 mm | 2510 mm |
