2009 Alpina B5 vs. 2009 Audi A8
To start off, both 2009 Alpina B5 and 2009 Audi A8 were released in the same year (2009). Therefore the support and the availability on parts for both vehicles should be relatively similar. At 5,204 cc (10 cylinders), 2009 Audi A8 is equipped with a bigger engine. In terms of performance, 2009 Alpina B5 (493 HP @ 5500 RPM) has 49 more horse power than 2009 Audi A8. (444 HP @ 7000 RPM). In normal driving conditions, 2009 Alpina B5 should accelerate faster than 2009 Audi A8. With that said, vehicle weight also plays an important factor in acceleration. 2009 Audi A8 weights approximately 130 kg more than 2009 Alpina B5.
Because 2009 Audi A8 is four wheel drive (4WD), it will have significant more traction and grip than 2009 Alpina B5. In wet, icy, snow, or gravel driving conditions, 2009 Audi A8 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, 2009 Alpina B5 (700 Nm @ 4250 RPM) has 160 more torque (in Nm) than 2009 Audi A8. (540 Nm @ 3500 RPM). This means 2009 Alpina B5 will have an easier job in driving up hills or pulling heavy equipment than 2009 Audi A8.
Compare all specifications:
| 2009 Alpina B5 | 2009 Audi A8 | |
| Make | Alpina | Audi |
| Model | B5 | A8 |
| Year Released | 2009 | 2009 |
| Body Type | Station Wagon | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4397 cc | 5204 cc |
| Engine Cylinders | 8 cylinders | 10 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 493 HP | 444 HP |
| Engine RPM | 5500 RPM | 7000 RPM |
| Torque | 700 Nm | 540 Nm |
| Torque RPM | 4250 RPM | 3500 RPM |
| Engine Bore Size | 92 mm | 84.5 mm |
| Engine Stroke Size | 82.7 mm | 92.8 mm |
| Engine Compression Ratio | 9.0:1 | 12.5:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 300 km/hour | 250 km/hour |
| Acceleration 0-100mph | 4.8 seconds | 5.1 seconds |
| Drive Type | Rear | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1810 kg | 1940 kg |
| Vehicle Length | 4850 mm | 5070 mm |
| Vehicle Width | 1850 mm | 1900 mm |
| Vehicle Height | 1500 mm | 1430 mm |
| Wheelbase Size | 2890 mm | 2950 mm |
| Fuel Consumption Overall | 12.4 L/100km | 15.8 L/100km |
| Fuel Tank Capacity | 70 L | 90 L |
