2007 Kia Optima vs. 2011 Mazda CX-7
To start off, 2011 Mazda CX-7 is newer by 4 year(s). Which means there will be less support and parts availability for 2007 Kia Optima. In addition, the cost of maintenance, including insurance, on 2007 Kia Optima would be higher. At 2,654 cc (6 cylinders), 2007 Kia Optima is equipped with a bigger engine. In terms of performance, 2011 Mazda CX-7 (244 HP @ 5000 RPM) has 59 more horse power than 2007 Kia Optima. (185 HP @ 6000 RPM) In normal driving conditions, 2011 Mazda CX-7 should accelerate faster than 2007 Kia Optima. With that said, vehicle weight also plays an important factor in acceleration. 2011 Mazda CX-7 weights approximately 231 kg more than 2007 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, 2011 Mazda CX-7 (349 Nm @ 2500 RPM) has 102 more torque (in Nm) than 2007 Kia Optima. (247 Nm @ 4000 RPM). This means 2011 Mazda CX-7 will have an easier job in driving up hills or pulling heavy equipment than 2007 Kia Optima.
Compare all specifications:
| 2007 Kia Optima | 2011 Mazda CX-7 | |
| Make | Kia | Mazda |
| Model | Optima | CX-7 |
| Year Released | 2007 | 2011 |
| Body Type | Sedan | SUV |
| Engine Position | Front | Front |
| Engine Size | 2654 cc | 2300 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 185 HP | 244 HP |
| Engine RPM | 6000 RPM | 5000 RPM |
| Torque | 247 Nm | 349 Nm |
| Torque RPM | 4000 RPM | 2500 RPM |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | Front | Front |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1487 kg | 1718 kg |
| Vehicle Length | 4740 mm | 4681 mm |
| Vehicle Width | 1810 mm | 1872 mm |
| Vehicle Height | 1490 mm | 1646 mm |
| Wheelbase Size | 2730 mm | 2751 mm |
| Fuel Consumption | 7.8 L/100km | 9.8 L/100km |
| Fuel Consumption City | 10.7 L/100km | 13.1 L/100km |
| Fuel Tank Capacity | 62 L | 69 L |
