2007 Alpina B5 vs. 2005 Mercedes-Benz S
To start off, 2007 Alpina B5 is newer by 2 year(s). Which means there will be less support and parts availability for 2005 Mercedes-Benz S. In addition, the cost of maintenance, including insurance, on 2005 Mercedes-Benz S would be higher. At 4,398 cc (8 cylinders), 2007 Alpina B5 is equipped with a bigger engine. In terms of performance, 2007 Alpina B5 (493 HP @ 5500 RPM) has 251 more horse power than 2005 Mercedes-Benz S. (242 HP @ 5700 RPM). In normal driving conditions, 2007 Alpina B5 should accelerate faster than 2005 Mercedes-Benz S. With that said, vehicle weight also plays an important factor in acceleration. 2005 Mercedes-Benz S weights approximately 193 kg more than 2007 Alpina B5.
Because 2005 Mercedes-Benz S is four wheel drive (4WD), it will have significant more traction and grip than 2007 Alpina B5. In wet, icy, snow, or gravel driving conditions, 2005 Mercedes-Benz S will offer significantly more control. 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 Alpina B5 (700 Nm @ 4250 RPM) has 350 more torque (in Nm) than 2005 Mercedes-Benz S. (350 Nm @ 3000 RPM). This means 2007 Alpina B5 will have an easier job in driving up hills or pulling heavy equipment than 2005 Mercedes-Benz S.
Compare all specifications:
| 2007 Alpina B5 | 2005 Mercedes-Benz S | |
| Make | Alpina | Mercedes-Benz |
| Model | B5 | S |
| Year Released | 2007 | 2005 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4398 cc | 3724 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 3 valves |
| Horse Power | 493 HP | 242 HP |
| Engine RPM | 5500 RPM | 5700 RPM |
| Torque | 700 Nm | 350 Nm |
| Torque RPM | 4250 RPM | 3000 RPM |
| Engine Bore Size | 92 mm | 97 mm |
| Engine Stroke Size | 82.7 mm | 84 mm |
| Engine Compression Ratio | 9.0:1 | 10.0:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 314 km/hour | 241 km/hour |
| Acceleration 0-100mph | 4.7 seconds | 7.9 seconds |
| Drive Type | Rear | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1722 kg | 1915 kg |
| Vehicle Length | 4850 mm | 5050 mm |
| Vehicle Width | 1850 mm | 1860 mm |
| Vehicle Height | 1470 mm | 1460 mm |
| Wheelbase Size | 2890 mm | 2860 mm |
| Fuel Consumption Overall | 12.3 L/100km | 12.1 L/100km |
| Fuel Tank Capacity | 70 L | 88 L |
