2009 Mercedes-Benz SLR McLaren vs. 2007 Mercedes-Benz B
To start off, 2009 Mercedes-Benz SLR McLaren is newer by 2 year(s). Which means there will be less support and parts availability for 2007 Mercedes-Benz B. In addition, the cost of maintenance, including insurance, on 2007 Mercedes-Benz B would be higher. At 5,439 cc (8 cylinders), 2009 Mercedes-Benz SLR McLaren is equipped with a bigger engine. In terms of performance, 2009 Mercedes-Benz SLR McLaren (618 HP @ 6500 RPM) has 480 more horse power than 2007 Mercedes-Benz B. (138 HP @ 4200 RPM). In normal driving conditions, 2009 Mercedes-Benz SLR McLaren should accelerate faster than 2007 Mercedes-Benz B. With that said, vehicle weight also plays an important factor in acceleration. 2009 Mercedes-Benz SLR McLaren weights approximately 451 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.
Because 2009 Mercedes-Benz SLR McLaren 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 2009 Mercedes-Benz SLR McLaren. However, in wet, icy, snow, or gravel driving conditions, 2007 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, 2009 Mercedes-Benz SLR McLaren (780 Nm @ 3250 RPM) has 480 more torque (in Nm) than 2007 Mercedes-Benz B. (300 Nm @ 1600 RPM). This means 2009 Mercedes-Benz SLR McLaren will have an easier job in driving up hills or pulling heavy equipment than 2007 Mercedes-Benz B.
Compare all specifications:
| 2009 Mercedes-Benz SLR McLaren | 2007 Mercedes-Benz B | |
| Make | Mercedes-Benz | Mercedes-Benz |
| Model | SLR McLaren | B |
| Year Released | 2009 | 2007 |
| Body Type | Convertible | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 5439 cc | 1991 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 3 valves | 4 valves |
| Horse Power | 618 HP | 138 HP |
| Engine RPM | 6500 RPM | 4200 RPM |
| Torque | 780 Nm | 300 Nm |
| Torque RPM | 3250 RPM | 1600 RPM |
| Engine Compression Ratio | 8.8:1 | 18.0:1 |
| Fuel Type | Diesel | Diesel |
| Top Speed | 332 km/hour | 200 km/hour |
| Drive Type | Rear | Front |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1825 kg | 1374 kg |
| Vehicle Length | 4660 mm | 4280 mm |
| Vehicle Width | 1910 mm | 1780 mm |
| Vehicle Height | 1260 mm | 1610 mm |
| Wheelbase Size | 2710 mm | 2780 mm |
| Fuel Consumption Overall | 18.1 L/100km | 5.8 L/100km |
| Fuel Tank Capacity | 97 L | 54 L |
