2008 GMC Sierra vs. 2006 Kia Optima
To start off, 2008 GMC Sierra is newer by 2 year(s). Which means there will be less support and parts availability for 2006 Kia Optima. In addition, the cost of maintenance, including insurance, on 2006 Kia Optima would be higher. At 4,298 cc (6 cylinders), 2008 GMC Sierra is equipped with a bigger engine. In terms of performance, 2008 GMC Sierra (195 HP @ 4600 RPM) has 25 more horse power than 2006 Kia Optima. (170 HP @ 6000 RPM). In normal driving conditions, 2008 GMC Sierra should accelerate faster than 2006 Kia Optima. With that said, vehicle weight also plays an important factor in acceleration. 2008 GMC Sierra weights approximately 653 kg more than 2006 Kia Optima. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2008 GMC Sierra is four wheel drive (4WD), it will have significant more traction and grip than 2006 Kia Optima. In wet, icy, snow, or gravel driving conditions, 2008 GMC Sierra 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, 2008 GMC Sierra (353 Nm @ 2800 RPM) has 108 more torque (in Nm) than 2006 Kia Optima. (245 Nm @ 4000 RPM). This means 2008 GMC Sierra will have an easier job in driving up hills or pulling heavy equipment than 2006 Kia Optima.
Compare all specifications:
| 2008 GMC Sierra | 2006 Kia Optima | |
| Make | GMC | Kia |
| Model | Sierra | Optima |
| Year Released | 2008 | 2006 |
| Body Type | Pickup | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4298 cc | 2671 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 195 HP | 170 HP |
| Engine RPM | 4600 RPM | 6000 RPM |
| Torque | 353 Nm | 245 Nm |
| Torque RPM | 2800 RPM | 4000 RPM |
| Engine Compression Ratio | 9.2:1 | 10.0:1 |
| Drive Type | 4WD | Front |
| Number of Seats | 3 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 2141 kg | 1488 kg |
| Vehicle Length | 5710 mm | 4730 mm |
| Vehicle Width | 2040 mm | 1820 mm |
| Vehicle Height | 1880 mm | 1420 mm |
| Wheelbase Size | 3030 mm | 2710 mm |
| Fuel Consumption Overall | 13.1 L/100km | 10.2 L/100km |
| Fuel Tank Capacity | 98 L | 65 L |
