2003 Infiniti QX4 vs. 1999 Opel Vectra
To start off, 2003 Infiniti QX4 is newer by 4 year(s). Which means there will be less support and parts availability for 1999 Opel Vectra. In addition, the cost of maintenance, including insurance, on 1999 Opel Vectra would be higher. At 3,498 cc (6 cylinders), 2003 Infiniti QX4 is equipped with a bigger engine. In terms of performance, 2003 Infiniti QX4 (238 HP @ 6000 RPM) has 104 more horse power than 1999 Opel Vectra. (134 HP @ 5600 RPM). In normal driving conditions, 2003 Infiniti QX4 should accelerate faster than 1999 Opel Vectra. With that said, vehicle weight also plays an important factor in acceleration. 2003 Infiniti QX4 weights approximately 490 kg more than 1999 Opel Vectra. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2003 Infiniti QX4 is four wheel drive (4WD), it will have significant more traction and grip than 1999 Opel Vectra. In wet, icy, snow, or gravel driving conditions, 2003 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, 2003 Infiniti QX4 (359 Nm @ 3200 RPM) has 172 more torque (in Nm) than 1999 Opel Vectra. (187 Nm @ 3400 RPM). This means 2003 Infiniti QX4 will have an easier job in driving up hills or pulling heavy equipment than 1999 Opel Vectra. 2003 Infiniti QX4 has automatic transmission and 1999 Opel Vectra has manual transmission. 1999 Opel Vectra will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2003 Infiniti QX4 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2003 Infiniti QX4 | 1999 Opel Vectra | |
| Make | Infiniti | Opel |
| Model | QX4 | Vectra |
| Year Released | 2003 | 1999 |
| Engine Position | Front | Front |
| Engine Size | 3498 cc | 1998 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 238 HP | 134 HP |
| Engine RPM | 6000 RPM | 5600 RPM |
| Torque | 359 Nm | 187 Nm |
| Torque RPM | 3200 RPM | 3400 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | 4WD | Front |
| Transmission Type | Automatic | Manual |
| Vehicle Weight | 1960 kg | 1470 kg |
| Vehicle Length | 4660 mm | 4500 mm |
| Vehicle Width | 1850 mm | 1720 mm |
| Vehicle Height | 1800 mm | 1500 mm |
| Wheelbase Size | 2710 mm | 2650 mm |
