2005 Kia Optima vs. 2007 Mazda RX-8
To start off, 2007 Mazda RX-8 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, 2007 Mazda RX-8 (232 HP @ 8500 RPM) has 62 more horse power than 2005 Kia Optima. (170 HP @ 4000 RPM) In normal driving conditions, 2007 Mazda RX-8 should accelerate faster than 2005 Kia Optima. With that said, vehicle weight also plays an important factor in acceleration. 2005 Kia Optima weights approximately 307 kg more than 2007 Mazda RX-8.
Because 2007 Mazda RX-8 is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 2007 Mazda RX-8. However, in wet, icy, snow, or gravel driving conditions, 2005 Kia Optima, being front wheel drive (FWD), will offer much better control with better grip. 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 25 more torque (in Nm) than 2007 Mazda RX-8. (216 Nm). This means 2005 Kia Optima will have an easier job in driving up hills or pulling heavy equipment than 2007 Mazda RX-8.
Compare all specifications:
2005 Kia Optima | 2007 Mazda RX-8 | |
Make | Kia | Mazda |
Model | Optima | RX-8 |
Year Released | 2005 | 2007 |
Body Type | Sedan | Coupe |
Engine Position | Front | Front |
Engine Size | 2671 cc | 1306 cc |
Engine Type | V | dual-disk rotary |
Horse Power | 170 HP | 232 HP |
Engine RPM | 4000 RPM | 8500 RPM |
Torque | 241 Nm | 216 Nm |
Engine Bore Size | 87 mm | 73 mm |
Engine Stroke Size | 75 mm | 85 mm |
Drive Type | Front | Rear |
Number of Seats | 5 seats | 4 seats |
Number of Doors | 4 doors | 4 doors |
Vehicle Weight | 1487 kg | 1180 kg |
Vehicle Length | 4730 mm | 4430 mm |
Vehicle Width | 1820 mm | 1780 mm |
Vehicle Height | 1420 mm | 1350 mm |
Wheelbase Size | 2710 mm | 2710 mm |
Fuel Consumption | 8.9 L/100km | 9.8 L/100km |
Fuel Consumption City | 11.9 L/100km | 13.1 L/100km |
Fuel Consumption Overall | 10.4 L/100km | 11.8 L/100km |
Fuel Tank Capacity | 65 L | 60 L |