1990 Infiniti Q45 vs. 2003 Jaguar XJ
To start off, 2003 Jaguar XJ is newer by 13 year(s). Which means there will be less support and parts availability for 1990 Infiniti Q45. In addition, the cost of maintenance, including insurance, on 1990 Infiniti Q45 would be higher. At 4,493 cc (8 cylinders), 1990 Infiniti Q45 is equipped with a bigger engine. In terms of performance, 2003 Jaguar XJ (294 HP @ 6100 RPM) has 17 more horse power than 1990 Infiniti Q45. (277 HP @ 6000 RPM) In normal driving conditions, 2003 Jaguar XJ should accelerate faster than 1990 Infiniti Q45. With that said, vehicle weight also plays an important factor in acceleration. 1990 Infiniti Q45 weights approximately 135 kg more than 2003 Jaguar XJ.
Both vehicles are rear wheel drive (RWD) - it offers better handling in dry conditions; in addition, if you are looking to drift, both vehicles do the job better than front wheel drive vehicles. 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 Jaguar XJ (411 Nm @ 4100 RPM) has 15 more torque (in Nm) than 1990 Infiniti Q45. (396 Nm @ 4000 RPM). This means 2003 Jaguar XJ will have an easier job in driving up hills or pulling heavy equipment than 1990 Infiniti Q45.
Compare all specifications:
| 1990 Infiniti Q45 | 2003 Jaguar XJ | |
| Make | Infiniti | Jaguar |
| Model | Q45 | XJ |
| Year Released | 1990 | 2003 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4493 cc | 4195 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 277 HP | 294 HP |
| Engine RPM | 6000 RPM | 6100 RPM |
| Torque | 396 Nm | 411 Nm |
| Torque RPM | 4000 RPM | 4100 RPM |
| Engine Bore Size | 93 mm | 86 mm |
| Engine Stroke Size | 82.7 mm | 90.3 mm |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1750 kg | 1615 kg |
| Vehicle Length | 5080 mm | 5090 mm |
| Vehicle Width | 1830 mm | 1870 mm |
| Vehicle Height | 1440 mm | 1450 mm |
| Wheelbase Size | 2890 mm | 3040 mm |
| Fuel Tank Capacity | 72 L | 85 L |
