2004 Kia Optima vs. 2004 Kia Rio
To start off, both 2004 Kia Optima and 2004 Kia Rio were released in the same year (2004). Therefore the support and the availability on parts for both vehicles should be relatively similar. At 2,398 cc (4 cylinders), 2004 Kia Optima is equipped with a bigger engine. In terms of performance, 2004 Kia Optima (138 HP @ 3800 RPM) has 34 more horse power than 2004 Kia Rio. (104 HP @ 4000 RPM). In normal driving conditions, 2004 Kia Optima should accelerate faster than 2004 Kia Rio. With that said, vehicle weight also plays an important factor in acceleration. 2004 Kia Optima weights approximately 459 kg more than 2004 Kia Rio. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
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, 2004 Kia Optima (199 Nm) has 58 more torque (in Nm) than 2004 Kia Rio. (141 Nm). This means 2004 Kia Optima will have an easier job in driving up hills or pulling heavy equipment than 2004 Kia Rio.
Compare all specifications:
| 2004 Kia Optima | 2004 Kia Rio | |
| Make | Kia | Kia |
| Model | Optima | Rio |
| Year Released | 2004 | 2004 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2398 cc | 1590 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 138 HP | 104 HP |
| Engine RPM | 3800 RPM | 4000 RPM |
| Torque | 199 Nm | 141 Nm |
| Engine Bore Size | 87 mm | 78 mm |
| Engine Stroke Size | 100 mm | 83 mm |
| Engine Compression Ratio | 10.0:1 | 10.0:1 |
| Drive Type | Front | Front |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1549 kg | 1090 kg |
| Vehicle Length | 4730 mm | 4250 mm |
| Vehicle Width | 1820 mm | 1690 mm |
| Vehicle Height | 1420 mm | 1450 mm |
| Wheelbase Size | 2720 mm | 2390 mm |
| Fuel Consumption Highway | 7.8 L/100km | 7.1 L/100km |
| Fuel Consumption City | 10.7 L/100km | 9.1 L/100km |
| Fuel Consumption Overall | 9.4 L/100km | 8.1 L/100km |
| Fuel Tank Capacity | 65 L | 45 L |
