2004 Hyundai Sonata vs. 2003 Infiniti Q45
To start off, 2004 Hyundai Sonata is newer by 1 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 4,494 cc (8 cylinders), 2003 Infiniti Q45 is equipped with a bigger engine. In terms of performance, 2003 Infiniti Q45 (340 HP @ 6400 RPM) has 179 more horse power than 2004 Hyundai Sonata. (161 HP @ 6000 RPM) In normal driving conditions, 2003 Infiniti Q45 should accelerate faster than 2004 Hyundai Sonata. With that said, vehicle weight also plays an important factor in acceleration. 2003 Infiniti Q45 weights approximately 266 kg more than 2004 Hyundai Sonata. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2003 Infiniti Q45 is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 2003 Infiniti Q45. However, in wet, icy, snow, or gravel driving conditions, 2004 Hyundai Sonata, being front wheel drive (FWD), will offer much better control with better grip. 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 232 more torque (in Nm) than 2004 Hyundai Sonata. (219 Nm @ 4250 RPM). This means 2003 Infiniti Q45 will have an easier job in driving up hills or pulling heavy equipment than 2004 Hyundai Sonata. 2003 Infiniti Q45 has automatic transmission and 2004 Hyundai Sonata has manual transmission. 2004 Hyundai Sonata will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2003 Infiniti Q45 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2004 Hyundai Sonata | 2003 Infiniti Q45 | |
| Make | Hyundai | Infiniti |
| Model | Sonata | Q45 |
| Year Released | 2004 | 2003 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2359 cc | 4494 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 161 HP | 340 HP |
| Engine RPM | 6000 RPM | 6400 RPM |
| Torque | 219 Nm | 451 Nm |
| Torque RPM | 4250 RPM | 4000 RPM |
| Engine Compression Ratio | 10.5:1 | 10.5:1 |
| Drive Type | Front | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1538 kg | 1804 kg |
| Vehicle Length | 4810 mm | 5080 mm |
| Vehicle Width | 1840 mm | 1850 mm |
| Vehicle Height | 1480 mm | 1500 mm |
| Wheelbase Size | 2640 mm | 2880 mm |
| Fuel Tank Capacity | 70 L | 81 L |
