2006 Kia Optima vs. 2008 Mercedes-Benz G
To start off, 2008 Mercedes-Benz G 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 3,996 cc (8 cylinders), 2008 Mercedes-Benz G is equipped with a bigger engine. In terms of performance, 2008 Mercedes-Benz G (247 HP @ 4000 RPM) has 109 more horse power than 2006 Kia Optima. (138 HP @ 5500 RPM) In normal driving conditions, 2008 Mercedes-Benz G should accelerate faster than 2006 Kia Optima. With that said, vehicle weight also plays an important factor in acceleration. 2008 Mercedes-Benz G weights approximately 1002 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 Mercedes-Benz G 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 Mercedes-Benz G 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 Mercedes-Benz G (560 Nm @ 1700 RPM) has 361 more torque (in Nm) than 2006 Kia Optima. (199 Nm @ 3000 RPM). This means 2008 Mercedes-Benz G will have an easier job in driving up hills or pulling heavy equipment than 2006 Kia Optima.
Compare all specifications:
| 2006 Kia Optima | 2008 Mercedes-Benz G | |
| Make | Kia | Mercedes-Benz |
| Model | Optima | G |
| Year Released | 2006 | 2008 |
| Body Type | Sedan | SUV |
| Engine Position | Front | Front |
| Engine Size | 2360 cc | 3996 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 138 HP | 247 HP |
| Engine RPM | 5500 RPM | 4000 RPM |
| Torque | 199 Nm | 560 Nm |
| Torque RPM | 3000 RPM | 1700 RPM |
| Engine Bore Size | 86.6 mm | 86 mm |
| Engine Stroke Size | 100 mm | 86 mm |
| Engine Compression Ratio | 10.0:1 | 19.0:1 |
| Fuel Type | Gasoline - Premium | Diesel |
| Drive Type | Front | 4WD |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1488 kg | 2490 kg |
| Vehicle Length | 4730 mm | 4670 mm |
| Vehicle Width | 1820 mm | 1870 mm |
| Vehicle Height | 1420 mm | 1940 mm |
| Wheelbase Size | 2710 mm | 2860 mm |
| Fuel Consumption Overall | 9.4 L/100km | 12.8 L/100km |
| Fuel Tank Capacity | 65 L | 96 L |
