2005 Kia Optima vs. 2013 Mazda 6
To start off, 2013 Mazda 6 is newer by 8 year(s). Which means there will be less support and parts availability for 2005 Kia Optima. In addition, the cost of maintenance, including insurance, on 2005 Kia Optima would be higher. At 2,489 cc (4 cylinders), 2013 Mazda 6 is equipped with a bigger engine. In terms of performance, 2013 Mazda 6 (168 HP @ 6000 RPM) has 30 more horse power than 2005 Kia Optima. (138 HP @ 4000 RPM) In normal driving conditions, 2013 Mazda 6 should accelerate faster than 2005 Kia Optima. With that said, vehicle weight also plays an important factor in acceleration. 2013 Mazda 6 weights approximately 2 kg more than 2005 Kia Optima. 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, 2013 Mazda 6 (226 Nm) has 27 more torque (in Nm) than 2005 Kia Optima. (199 Nm). This means 2013 Mazda 6 will have an easier job in driving up hills or pulling heavy equipment than 2005 Kia Optima.
Compare all specifications:
| 2005 Kia Optima | 2013 Mazda 6 | |
| Make | Kia | Mazda |
| Model | Optima | 6 |
| Year Released | 2005 | 2013 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2360 cc | 2489 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 138 HP | 168 HP |
| Engine RPM | 4000 RPM | 6000 RPM |
| Torque | 199 Nm | 226 Nm |
| Engine Bore Size | 87.1 mm | 89 mm |
| Engine Stroke Size | 100 mm | 100 mm |
| Engine Compression Ratio | 10.0:1 | 9.7:1 |
| Drive Type | Front | Front |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1497 kg | 1499 kg |
| Vehicle Length | 4730 mm | 4940 mm |
| Vehicle Width | 1820 mm | 1840 mm |
| Vehicle Height | 1420 mm | 1470 mm |
| Wheelbase Size | 2620 mm | 2790 mm |
| Fuel Consumption Highway | 7.8 L/100km | 6.6 L/100km |
| Fuel Consumption City | 10.7 L/100km | 9.8 L/100km |
| Fuel Tank Capacity | 65 L | 70 L |
