2009 Infiniti QX56 vs. 1978 Renault 18
To start off, 2009 Infiniti QX56 is newer by 31 year(s). Which means there will be less support and parts availability for 1978 Renault 18. In addition, the cost of maintenance, including insurance, on 1978 Renault 18 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 216 more horse power than 1978 Renault 18. (104 HP @ 5500 RPM). In normal driving conditions, 2009 Infiniti QX56 should accelerate faster than 1978 Renault 18. With that said, vehicle weight also plays an important factor in acceleration. 2009 Infiniti QX56 weights approximately 253 kg more than 1978 Renault 18. 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 1978 Renault 18. 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 373 more torque (in Nm) than 1978 Renault 18. (160 Nm @ 3000 RPM). This means 2009 Infiniti QX56 will have an easier job in driving up hills or pulling heavy equipment than 1978 Renault 18. 2009 Infiniti QX56 has automatic transmission and 1978 Renault 18 has manual transmission. 1978 Renault 18 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 | 1978 Renault 18 | |
| Make | Infiniti | Renault |
| Model | QX56 | 18 |
| Year Released | 2009 | 1978 |
| Engine Position | Front | Front |
| Engine Size | 5552 cc | 1995 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 320 HP | 104 HP |
| Engine RPM | 5200 RPM | 5500 RPM |
| Torque | 533 Nm | 160 Nm |
| Torque RPM | 3400 RPM | 3000 RPM |
| Drive Type | 4WD | Front |
| Transmission Type | Automatic | Manual |
| Number of Seats | 7 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1320 kg | 1067 kg |
| Vehicle Length | 5260 mm | 4380 mm |
| Vehicle Width | 2010 mm | 1680 mm |
| Vehicle Height | 2010 mm | 1410 mm |
| Wheelbase Size | 3140 mm | 2470 mm |
| Fuel Tank Capacity | 106 L | 53 L |
