1987 Ford Sierra vs. 2006 Infiniti QX4
To start off, 2006 Infiniti QX4 is newer by 19 year(s). Which means there will be less support and parts availability for 1987 Ford Sierra. In addition, the cost of maintenance, including insurance, on 1987 Ford Sierra would be higher. At 5,552 cc (8 cylinders), 2006 Infiniti QX4 is equipped with a bigger engine. In terms of performance, 2006 Infiniti QX4 (315 HP @ 4900 RPM) has 225 more horse power than 1987 Ford Sierra. (90 HP @ 5400 RPM) In normal driving conditions, 2006 Infiniti QX4 should accelerate faster than 1987 Ford Sierra. With that said, vehicle weight also plays an important factor in acceleration. 2006 Infiniti QX4 weights approximately 265 kg more than 1987 Ford Sierra. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2006 Infiniti QX4 is four wheel drive (4WD), it will have significant more traction and grip than 1987 Ford Sierra. In wet, icy, snow, or gravel driving conditions, 2006 Infiniti QX4 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 QX4 (530 Nm @ 3600 RPM) has 387 more torque (in Nm) than 1987 Ford Sierra. (143 Nm @ 3500 RPM). This means 2006 Infiniti QX4 will have an easier job in driving up hills or pulling heavy equipment than 1987 Ford Sierra. 2006 Infiniti QX4 has automatic transmission and 1987 Ford Sierra has manual transmission. 1987 Ford Sierra will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2006 Infiniti QX4 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1987 Ford Sierra | 2006 Infiniti QX4 | |
| Make | Ford | Infiniti |
| Model | Sierra | QX4 |
| Year Released | 1987 | 2006 |
| Body Type | Station Wagon | SUV |
| Engine Position | Front | Front |
| Engine Size | 1796 cc | 5552 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 90 HP | 315 HP |
| Engine RPM | 5400 RPM | 4900 RPM |
| Torque | 143 Nm | 530 Nm |
| Torque RPM | 3500 RPM | 3600 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | 4WD |
| Transmission Type | Manual | Automatic |
| Vehicle Weight | 1055 kg | 1320 kg |
| Vehicle Length | 4500 mm | 5260 mm |
| Vehicle Width | 1680 mm | 2010 mm |
| Vehicle Height | 1400 mm | 1960 mm |
| Wheelbase Size | 2620 mm | 3140 mm |
