2008 GMC Sierra vs. 2005 Kia Optima
To start off, 2008 GMC Sierra is newer by 3 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 5,300 cc (8 cylinders), 2008 GMC Sierra is equipped with a bigger engine. In terms of performance, 2008 GMC Sierra (316 HP @ 5200 RPM) has 178 more horse power than 2005 Kia Optima. (138 HP @ 4000 RPM). In normal driving conditions, 2008 GMC Sierra should accelerate faster than 2005 Kia Optima. With that said, vehicle weight also plays an important factor in acceleration. 2008 GMC Sierra weights approximately 1162 kg more than 2005 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 2005 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 (458 Nm) has 259 more torque (in Nm) than 2005 Kia Optima. (199 Nm). This means 2008 GMC Sierra will have an easier job in driving up hills or pulling heavy equipment than 2005 Kia Optima.
Compare all specifications:
| 2008 GMC Sierra | 2005 Kia Optima | |
| Make | GMC | Kia |
| Model | Sierra | Optima |
| Year Released | 2008 | 2005 |
| Body Type | Pickup | Sedan |
| Engine Position | Front | Front |
| Engine Size | 5300 cc | 2360 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 316 HP | 138 HP |
| Engine RPM | 5200 RPM | 4000 RPM |
| Torque | 458 Nm | 199 Nm |
| Drive Type | 4WD | Front |
| Number of Seats | 6 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 2659 kg | 1497 kg |
| Vehicle Length | 6320 mm | 4730 mm |
| Vehicle Width | 2040 mm | 1820 mm |
| Vehicle Height | 1870 mm | 1420 mm |
| Wheelbase Size | 4010 mm | 2620 mm |
| Fuel Consumption Overall | 13.8 L/100km | 9.4 L/100km |
| Fuel Tank Capacity | 129 L | 65 L |
