2003 Hyundai XG 350 vs. 2007 Kia Optima
To start off, 2007 Kia Optima is newer by 4 year(s). Which means there will be less support and parts availability for 2003 Hyundai XG 350. In addition, the cost of maintenance, including insurance, on 2003 Hyundai XG 350 would be higher. At 3,497 cc (6 cylinders), 2003 Hyundai XG 350 is equipped with a bigger engine. In terms of performance, 2003 Hyundai XG 350 (194 HP @ 5500 RPM) has 32 more horse power than 2007 Kia Optima. (162 HP @ 5800 RPM). In normal driving conditions, 2003 Hyundai XG 350 should accelerate faster than 2007 Kia Optima.
Both vehicles are front wheel drive (FWD). Which offers better traction when its slippery than rear 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 Hyundai XG 350 (298 Nm @ 3500 RPM) has 76 more torque (in Nm) than 2007 Kia Optima. (222 Nm @ 4250 RPM). This means 2003 Hyundai XG 350 will have an easier job in driving up hills or pulling heavy equipment than 2007 Kia Optima. 2003 Hyundai XG 350 has automatic transmission and 2007 Kia Optima has manual transmission. 2007 Kia Optima will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2003 Hyundai XG 350 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2003 Hyundai XG 350 | 2007 Kia Optima | |
| Make | Hyundai | Kia |
| Model | XG 350 | Optima |
| Year Released | 2003 | 2007 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3497 cc | 2359 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 194 HP | 162 HP |
| Engine RPM | 5500 RPM | 5800 RPM |
| Torque | 298 Nm | 222 Nm |
| Torque RPM | 3500 RPM | 4250 RPM |
| Drive Type | Front | Front |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Length | 4870 mm | 4740 mm |
| Vehicle Width | 1830 mm | 1810 mm |
| Vehicle Height | 1430 mm | 1490 mm |
| Wheelbase Size | 2760 mm | 2730 mm |
| Fuel Tank Capacity | 65 L | 62 L |
