2009 Alpina B5 vs. 2008 Audi S4
To start off, 2009 Alpina B5 is newer by 1 year(s). Which means there will be less support and parts availability for 2008 Audi S4. In addition, the cost of maintenance, including insurance, on 2008 Audi S4 would be higher. At 4,397 cc (8 cylinders), 2009 Alpina B5 is equipped with a bigger engine. In terms of performance, 2009 Alpina B5 (493 HP @ 5500 RPM) has 37 more horse power than 2008 Audi S4. (456 HP @ 6800 RPM). In normal driving conditions, 2009 Alpina B5 should accelerate faster than 2008 Audi S4. With that said, vehicle weight also plays an important factor in acceleration. 2008 Audi S4 weights approximately 85 kg more than 2009 Alpina B5.
Because 2008 Audi S4 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, 2008 Audi S4 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 398 more torque (in Nm) than 2008 Audi S4. (302 Nm @ 3500 RPM). This means 2009 Alpina B5 will have an easier job in driving up hills or pulling heavy equipment than 2008 Audi S4.
Compare all specifications:
| 2009 Alpina B5 | 2008 Audi S4 | |
| Make | Alpina | Audi |
| Model | B5 | S4 |
| Year Released | 2009 | 2008 |
| Body Type | Station Wagon | Convertible |
| Engine Position | Front | Front |
| Engine Size | 4397 cc | 4124 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 5 valves |
| Horse Power | 493 HP | 456 HP |
| Engine RPM | 5500 RPM | 6800 RPM |
| Torque | 700 Nm | 302 Nm |
| Torque RPM | 4250 RPM | 3500 RPM |
| Engine Compression Ratio | 9.0:1 | 11.0:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Top Speed | 300 km/hour | 249 km/hour |
| Acceleration 0-100mph | 4.8 seconds | 6.1 seconds |
| Drive Type | Rear | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1810 kg | 1895 kg |
| Vehicle Length | 4850 mm | 4580 mm |
| Vehicle Width | 1850 mm | 1400 mm |
| Vehicle Height | 1500 mm | 1400 mm |
| Wheelbase Size | 2890 mm | 2660 mm |
| Fuel Consumption Overall | 12.4 L/100km | 16.4 L/100km |
| Fuel Tank Capacity | 70 L | 70 L |
