2004 Kia Opirus vs. 2007 Mercedes-Benz B
To start off, 2007 Mercedes-Benz B is newer by 3 year(s). Which means there will be less support and parts availability for 2004 Kia Opirus. In addition, the cost of maintenance, including insurance, on 2004 Kia Opirus would be higher. At 3,497 cc (6 cylinders), 2004 Kia Opirus is equipped with a bigger engine. In terms of performance, 2004 Kia Opirus (196 HP @ 5500 RPM) has 58 more horse power than 2007 Mercedes-Benz B. (138 HP @ 4200 RPM). In normal driving conditions, 2004 Kia Opirus should accelerate faster than 2007 Mercedes-Benz B. With that said, vehicle weight also plays an important factor in acceleration. 2004 Kia Opirus weights approximately 325 kg more than 2007 Mercedes-Benz B. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are front wheel drive (FWD). Which offers better traction when its slippery than rear wheel drive vehicles. 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 B (300 Nm @ 1600 RPM) has 6 more torque (in Nm) than 2004 Kia Opirus. (294 Nm @ 3500 RPM). This means 2007 Mercedes-Benz B will have an easier job in driving up hills or pulling heavy equipment than 2004 Kia Opirus.
Compare all specifications:
| 2004 Kia Opirus | 2007 Mercedes-Benz B | |
| Make | Kia | Mercedes-Benz |
| Model | Opirus | B |
| Year Released | 2004 | 2007 |
| Body Type | Sedan | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 3497 cc | 1991 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 196 HP | 138 HP |
| Engine RPM | 5500 RPM | 4200 RPM |
| Torque | 294 Nm | 300 Nm |
| Torque RPM | 3500 RPM | 1600 RPM |
| Fuel Type | Gasoline | Diesel |
| Drive Type | Front | Front |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1760 kg | 1435 kg |
| Vehicle Length | 4960 mm | 4280 mm |
| Vehicle Width | 1860 mm | 1610 mm |
| Vehicle Height | 1490 mm | 1780 mm |
| Wheelbase Size | 2810 mm | 2780 mm |
