2005 Kia Optima vs. 2007 Mazda 5
To start off, 2007 Mazda 5 is newer by 2 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 2,671 cc (6 cylinders), 2005 Kia Optima is equipped with a bigger engine. In terms of performance, 2005 Kia Optima (170 HP @ 4000 RPM) has 27 more horse power than 2007 Mazda 5. (143 HP @ 6000 RPM). In normal driving conditions, 2005 Kia Optima should accelerate faster than 2007 Mazda 5. With that said, vehicle weight also plays an important factor in acceleration. 2005 Kia Optima weights approximately 12 kg more than 2007 Mazda 5. 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, 2005 Kia Optima (241 Nm) has 56 more torque (in Nm) than 2007 Mazda 5. (185 Nm). This means 2005 Kia Optima will have an easier job in driving up hills or pulling heavy equipment than 2007 Mazda 5.
Compare all specifications:
| 2005 Kia Optima | 2007 Mazda 5 | |
| Make | Kia | Mazda |
| Model | Optima | 5 |
| Year Released | 2005 | 2007 |
| Body Type | Sedan | Minivan |
| Engine Position | Front | Front |
| Engine Size | 2671 cc | 1999 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 170 HP | 143 HP |
| Engine RPM | 4000 RPM | 6000 RPM |
| Torque | 241 Nm | 185 Nm |
| Engine Bore Size | 87 mm | 87.5 mm |
| Engine Stroke Size | 75 mm | 83.1 mm |
| Engine Compression Ratio | 10.0:1 | 10.8:1 |
| Drive Type | Front | Front |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1487 kg | 1475 kg |
| Vehicle Length | 4730 mm | 4510 mm |
| Vehicle Width | 1820 mm | 1760 mm |
| Vehicle Height | 1420 mm | 1620 mm |
| Wheelbase Size | 2710 mm | 2760 mm |
| Fuel Consumption Overall | 10.4 L/100km | 8.2 L/100km |
| Fuel Tank Capacity | 65 L | 60 L |
