2007 Kia Optima vs. 2013 Mercedes-Benz GLK
To start off, 2013 Mercedes-Benz GLK is newer by 6 year(s). Which means there will be less support and parts availability for 2007 Kia Optima. In addition, the cost of maintenance, including insurance, on 2007 Kia Optima would be higher. At 3,500 cc (6 cylinders), 2013 Mercedes-Benz GLK is equipped with a bigger engine. In terms of performance, 2013 Mercedes-Benz GLK (298 HP @ 6500 RPM) has 113 more horse power than 2007 Kia Optima. (185 HP @ 6000 RPM) In normal driving conditions, 2013 Mercedes-Benz GLK should accelerate faster than 2007 Kia Optima. With that said, vehicle weight also plays an important factor in acceleration. 2013 Mercedes-Benz GLK weights approximately 358 kg more than 2007 Kia Optima. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2013 Mercedes-Benz GLK 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 2013 Mercedes-Benz GLK. However, in wet, icy, snow, or gravel driving conditions, 2007 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, 2013 Mercedes-Benz GLK (370 Nm @ 5250 RPM) has 123 more torque (in Nm) than 2007 Kia Optima. (247 Nm @ 4000 RPM). This means 2013 Mercedes-Benz GLK will have an easier job in driving up hills or pulling heavy equipment than 2007 Kia Optima. 2007 Kia Optima has automatic transmission and 2013 Mercedes-Benz GLK has manual transmission. 2013 Mercedes-Benz GLK will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2007 Kia Optima will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2007 Kia Optima | 2013 Mercedes-Benz GLK | |
| Make | Kia | Mercedes-Benz |
| Model | Optima | GLK |
| Year Released | 2007 | 2013 |
| Body Type | Sedan | SUV |
| Engine Position | Front | Front |
| Engine Size | 2654 cc | 3500 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | electric |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 185 HP | 298 HP |
| Engine RPM | 6000 RPM | 6500 RPM |
| Torque | 247 Nm | 370 Nm |
| Torque RPM | 4000 RPM | 5250 RPM |
| Engine Bore Size | 86.7 mm | 92 mm |
| Engine Stroke Size | 75 mm | 86 mm |
| Engine Compression Ratio | 10.4:1 | 12.0:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Drive Type | Front | Rear |
| Transmission Type | Automatic | 6-speed manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1487 kg | 1845 kg |
| Vehicle Length | 4740 mm | 4536 mm |
| Vehicle Width | 1810 mm | 2016 mm |
| Vehicle Height | 1490 mm | 1669 mm |
| Wheelbase Size | 2730 mm | 2755 mm |
| Fuel Consumption | 7.8 L/100km | 9.3 L/100km |
| Fuel Consumption City | 10.7 L/100km | 13 L/100km |
