2003 Infiniti Q45 vs. 2002 Jaguar XJR
To start off, 2003 Infiniti Q45 is newer by 1 year(s). Which means there will be less support and parts availability for 2002 Jaguar XJR. In addition, the cost of maintenance, including insurance, on 2002 Jaguar XJR would be higher. At 4,494 cc (8 cylinders), 2003 Infiniti Q45 is equipped with a bigger engine. In terms of performance, 2002 Jaguar XJR (390 HP @ 6100 RPM) has 50 more horse power than 2003 Infiniti Q45. (340 HP @ 6400 RPM) In normal driving conditions, 2002 Jaguar XJR should accelerate faster than 2003 Infiniti Q45. With that said, vehicle weight also plays an important factor in acceleration. 2003 Infiniti Q45 weights approximately 139 kg more than 2002 Jaguar XJR.
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, 2002 Jaguar XJR (525 Nm @ 3500 RPM) has 74 more torque (in Nm) than 2003 Infiniti Q45. (451 Nm @ 4000 RPM). This means 2002 Jaguar XJR will have an easier job in driving up hills or pulling heavy equipment than 2003 Infiniti Q45.
Compare all specifications:
| 2003 Infiniti Q45 | 2002 Jaguar XJR | |
| Make | Infiniti | Jaguar |
| Model | Q45 | XJR |
| Year Released | 2003 | 2002 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4494 cc | 4196 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 340 HP | 390 HP |
| Engine RPM | 6400 RPM | 6100 RPM |
| Torque | 451 Nm | 525 Nm |
| Torque RPM | 4000 RPM | 3500 RPM |
| Engine Compression Ratio | 10.5:1 | 9.1:1 |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1804 kg | 1665 kg |
| Vehicle Length | 5080 mm | 5100 mm |
| Vehicle Width | 1850 mm | 1870 mm |
| Vehicle Height | 1500 mm | 1450 mm |
| Wheelbase Size | 2880 mm | 2910 mm |
| Fuel Tank Capacity | 81 L | 85 L |
