2004 Kia Optima vs. 2005 Pontiac Aztek
To start off, 2005 Pontiac Aztek is newer by 1 year(s). Which means there will be less support and parts availability for 2004 Kia Optima. In addition, the cost of maintenance, including insurance, on 2004 Kia Optima would be higher. At 3,392 cc (6 cylinders), 2005 Pontiac Aztek is equipped with a bigger engine. In terms of performance, 2005 Pontiac Aztek (176 HP @ 5200 RPM) has 38 more horse power than 2004 Kia Optima. (138 HP @ 3800 RPM) In normal driving conditions, 2005 Pontiac Aztek should accelerate faster than 2004 Kia Optima. With that said, vehicle weight also plays an important factor in acceleration. 2005 Pontiac Aztek weights approximately 281 kg more than 2004 Kia Optima. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2005 Pontiac Aztek is four wheel drive (4WD), it will have significant more traction and grip than 2004 Kia Optima. In wet, icy, snow, or gravel driving conditions, 2005 Pontiac Aztek will offer significantly more control. 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 Pontiac Aztek (298 Nm) has 99 more torque (in Nm) than 2004 Kia Optima. (199 Nm). This means 2005 Pontiac Aztek will have an easier job in driving up hills or pulling heavy equipment than 2004 Kia Optima.
Compare all specifications:
| 2004 Kia Optima | 2005 Pontiac Aztek | |
| Make | Kia | Pontiac |
| Model | Optima | Aztek |
| Year Released | 2004 | 2005 |
| Body Type | Sedan | Crossover |
| Engine Position | Front | Front |
| Engine Size | 2398 cc | 3392 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 138 HP | 176 HP |
| Engine RPM | 3800 RPM | 5200 RPM |
| Torque | 199 Nm | 298 Nm |
| Engine Bore Size | 87 mm | 92 mm |
| Engine Stroke Size | 100 mm | 84 mm |
| Engine Compression Ratio | 10.0:1 | 8.6:1 |
| Drive Type | Front | 4WD |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1549 kg | 1830 kg |
| Vehicle Length | 4730 mm | 4630 mm |
| Vehicle Width | 1820 mm | 1880 mm |
| Vehicle Height | 1420 mm | 1700 mm |
| Wheelbase Size | 2720 mm | 2760 mm |
| Fuel Tank Capacity | 65 L | 69 L |
