2003 Kia Opirus vs. 2009 Mercedes-Benz B
To start off, 2009 Mercedes-Benz B is newer by 6 year(s). Which means there will be less support and parts availability for 2003 Kia Opirus. In addition, the cost of maintenance, including insurance, on 2003 Kia Opirus would be higher. At 3,497 cc (6 cylinders), 2003 Kia Opirus is equipped with a bigger engine. In terms of performance, 2003 Kia Opirus (196 HP @ 5500 RPM) has 88 more horse power than 2009 Mercedes-Benz B. (108 HP @ 4200 RPM). In normal driving conditions, 2003 Kia Opirus should accelerate faster than 2009 Mercedes-Benz B. With that said, vehicle weight also plays an important factor in acceleration. 2003 Kia Opirus weights approximately 320 kg more than 2009 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, 2003 Kia Opirus (295 Nm @ 3500 RPM) has 45 more torque (in Nm) than 2009 Mercedes-Benz B. (250 Nm @ 1600 RPM). This means 2003 Kia Opirus will have an easier job in driving up hills or pulling heavy equipment than 2009 Mercedes-Benz B. 2003 Kia Opirus has automatic transmission and 2009 Mercedes-Benz B has manual transmission. 2009 Mercedes-Benz B will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2003 Kia Opirus will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2003 Kia Opirus | 2009 Mercedes-Benz B | |
| Make | Kia | Mercedes-Benz |
| Model | Opirus | B |
| Year Released | 2003 | 2009 |
| 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 | 108 HP |
| Engine RPM | 5500 RPM | 4200 RPM |
| Torque | 295 Nm | 250 Nm |
| Torque RPM | 3500 RPM | 1600 RPM |
| Engine Bore Size | 93 mm | 83 mm |
| Engine Stroke Size | 85.8 mm | 92 mm |
| Fuel Type | Gasoline | Diesel |
| Drive Type | Front | Front |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1760 kg | 1440 kg |
| Vehicle Length | 4960 mm | 4280 mm |
| Vehicle Width | 1860 mm | 1780 mm |
| Vehicle Height | 1490 mm | 1610 mm |
| Wheelbase Size | 2810 mm | 2780 mm |
