2009 Mercedes-Benz B vs. 2005 Mercedes-Benz SL
To start off, 2009 Mercedes-Benz B is newer by 4 year(s). Which means there will be less support and parts availability for 2005 Mercedes-Benz SL. In addition, the cost of maintenance, including insurance, on 2005 Mercedes-Benz SL would be higher. At 5,513 cc (12 cylinders), 2005 Mercedes-Benz SL is equipped with a bigger engine. In terms of performance, 2005 Mercedes-Benz SL (493 HP @ 4800 RPM) has 355 more horse power than 2009 Mercedes-Benz B. (138 HP @ 4200 RPM) In normal driving conditions, 2005 Mercedes-Benz SL should accelerate faster than 2009 Mercedes-Benz B. With that said, vehicle weight also plays an important factor in acceleration. 2005 Mercedes-Benz SL weights approximately 605 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.
Because 2005 Mercedes-Benz SL 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 2005 Mercedes-Benz SL. However, in wet, icy, snow, or gravel driving conditions, 2009 Mercedes-Benz B, 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, 2005 Mercedes-Benz SL (800 Nm @ 1800 RPM) has 500 more torque (in Nm) than 2009 Mercedes-Benz B. (300 Nm @ 1600 RPM). This means 2005 Mercedes-Benz SL will have an easier job in driving up hills or pulling heavy equipment than 2009 Mercedes-Benz B. 2005 Mercedes-Benz SL 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. 2005 Mercedes-Benz SL will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2009 Mercedes-Benz B | 2005 Mercedes-Benz SL | |
| Make | Mercedes-Benz | Mercedes-Benz |
| Model | B | SL |
| Year Released | 2009 | 2005 |
| Body Type | Hatchback | Convertible |
| Engine Position | Front | Front |
| Engine Size | 1989 cc | 5513 cc |
| Engine Cylinders | 4 cylinders | 12 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 3 valves |
| Horse Power | 138 HP | 493 HP |
| Engine RPM | 4200 RPM | 4800 RPM |
| Torque | 300 Nm | 800 Nm |
| Torque RPM | 1600 RPM | 1800 RPM |
| Engine Bore Size | 83 mm | 82 mm |
| Engine Stroke Size | 92 mm | 87 mm |
| Engine Compression Ratio | 18.0:1 | 9.0:1 |
| Fuel Type | Diesel | Gasoline - Premium |
| Top Speed | 200 km/hour | 250 km/hour |
| Acceleration 0-100mph | 9.7 seconds | 4.7 seconds |
| Drive Type | Front | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1435 kg | 2040 kg |
| Vehicle Length | 4280 mm | 4540 mm |
| Vehicle Width | 1610 mm | 1830 mm |
| Vehicle Height | 1780 mm | 1300 mm |
| Wheelbase Size | 2780 mm | 2570 mm |
| Fuel Consumption Overall | 5.6 L/100km | 14.7 L/100km |
| Fuel Tank Capacity | 54 L | 80 L |
