2005 Cadillac SRX vs. 2003 Infiniti Q45
To start off, 2005 Cadillac SRX is newer by 2 year(s). Which means there will be less support and parts availability for 2003 Infiniti Q45. In addition, the cost of maintenance, including insurance, on 2003 Infiniti Q45 would be higher. At 4,572 cc (8 cylinders), 2005 Cadillac SRX is equipped with a bigger engine. In terms of performance, 2003 Infiniti Q45 (340 HP @ 6400 RPM) has 29 more horse power than 2005 Cadillac SRX. (311 HP @ 6000 RPM) In normal driving conditions, 2003 Infiniti Q45 should accelerate faster than 2005 Cadillac SRX. With that said, vehicle weight also plays an important factor in acceleration. 2005 Cadillac SRX weights approximately 147 kg more than 2003 Infiniti Q45.
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 Infiniti Q45 (451 Nm @ 4000 RPM) has 31 more torque (in Nm) than 2005 Cadillac SRX. (420 Nm @ 4400 RPM). This means 2003 Infiniti Q45 will have an easier job in driving up hills or pulling heavy equipment than 2005 Cadillac SRX.
Compare all specifications:
| 2005 Cadillac SRX | 2003 Infiniti Q45 | |
| Make | Cadillac | Infiniti |
| Model | SRX | Q45 |
| Year Released | 2005 | 2003 |
| Body Type | SUV | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4572 cc | 4494 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 311 HP | 340 HP |
| Engine RPM | 6000 RPM | 6400 RPM |
| Torque | 420 Nm | 451 Nm |
| Torque RPM | 4400 RPM | 4000 RPM |
| Engine Compression Ratio | 10.5:1 | 10.5:1 |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1951 kg | 1804 kg |
| Vehicle Length | 4960 mm | 5080 mm |
| Vehicle Width | 1850 mm | 1850 mm |
| Vehicle Height | 1730 mm | 1500 mm |
| Wheelbase Size | 2960 mm | 2880 mm |
| Fuel Tank Capacity | 76 L | 81 L |
