2009 Kia Optima vs. 2007 Mercedes-Benz SLK
To start off, 2009 Kia Optima is newer by 2 year(s). Which means there will be less support and parts availability for 2007 Mercedes-Benz SLK. In addition, the cost of maintenance, including insurance, on 2007 Mercedes-Benz SLK would be higher. At 2,996 cc (6 cylinders), 2007 Mercedes-Benz SLK is equipped with a bigger engine. In terms of performance, 2007 Mercedes-Benz SLK (228 HP @ 6100 RPM) has 55 more horse power than 2009 Kia Optima. (173 HP @ 6000 RPM) In normal driving conditions, 2007 Mercedes-Benz SLK should accelerate faster than 2009 Kia Optima.
Because 2007 Mercedes-Benz SLK 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 2007 Mercedes-Benz SLK. However, in wet, icy, snow, or gravel driving conditions, 2009 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, 2007 Mercedes-Benz SLK (300 Nm @ 2700 RPM) has 131 more torque (in Nm) than 2009 Kia Optima. (169 Nm @ 4000 RPM). This means 2007 Mercedes-Benz SLK will have an easier job in driving up hills or pulling heavy equipment than 2009 Kia Optima.
Compare all specifications:
| 2009 Kia Optima | 2007 Mercedes-Benz SLK | |
| Make | Kia | Mercedes-Benz |
| Model | Optima | SLK |
| Year Released | 2009 | 2007 |
| Body Type | Sedan | Convertible |
| Engine Position | Front | Front |
| Engine Size | 2399 cc | 2996 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 173 HP | 228 HP |
| Engine RPM | 6000 RPM | 6100 RPM |
| Torque | 169 Nm | 300 Nm |
| Torque RPM | 4000 RPM | 2700 RPM |
| Fuel Type | Gasoline | Diesel |
| Drive Type | Front | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Length | 4810 mm | 4090 mm |
| Vehicle Width | 1810 mm | 1790 mm |
| Vehicle Height | 1490 mm | 1300 mm |
| Wheelbase Size | 2730 mm | 2440 mm |
| Fuel Consumption | 7.4 L/100km | 8.7 L/100km |
| Fuel Consumption City | 10.7 L/100km | 11.8 L/100km |
| Fuel Consumption Overall | 9.4 L/100km | 10.7 L/100km |
| Fuel Tank Capacity | 62 L | 70 L |
