2006 Alpina B7 vs. 2009 Audi S4
To start off, 2009 Audi S4 is newer by 3 year(s). Which means there will be less support and parts availability for 2006 Alpina B7. In addition, the cost of maintenance, including insurance, on 2006 Alpina B7 would be higher. At 4,398 cc (8 cylinders), 2006 Alpina B7 is equipped with a bigger engine. In terms of performance, 2006 Alpina B7 (492 HP @ 5500 RPM) has 152 more horse power than 2009 Audi S4. (340 HP @ 6800 RPM). In normal driving conditions, 2006 Alpina B7 should accelerate faster than 2009 Audi S4. With that said, vehicle weight also plays an important factor in acceleration. 2006 Alpina B7 weights approximately 1020 kg more than 2009 Audi S4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2009 Audi S4 is four wheel drive (4WD), it will have significant more traction and grip than 2006 Alpina B7. In wet, icy, snow, or gravel driving conditions, 2009 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, 2006 Alpina B7 (700 Nm @ 4250 RPM) has 290 more torque (in Nm) than 2009 Audi S4. (410 Nm @ 3500 RPM). This means 2006 Alpina B7 will have an easier job in driving up hills or pulling heavy equipment than 2009 Audi S4.
Compare all specifications:
| 2006 Alpina B7 | 2009 Audi S4 | |
| Make | Alpina | Audi |
| Model | B7 | S4 |
| Year Released | 2006 | 2009 |
| Body Type | Sedan | Convertible |
| Engine Position | Front | Front |
| Engine Size | 4398 cc | 4161 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 5 valves |
| Horse Power | 492 HP | 340 HP |
| Engine RPM | 5500 RPM | 6800 RPM |
| Torque | 700 Nm | 410 Nm |
| Torque RPM | 4250 RPM | 3500 RPM |
| Engine Bore Size | 92 mm | 84.5 mm |
| Engine Stroke Size | 82.7 mm | 92.8 mm |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | Rear | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1950 kg | 930 kg |
| Vehicle Length | 5040 mm | 4580 mm |
| Vehicle Width | 1910 mm | 1780 mm |
| Vehicle Height | 1480 mm | 1400 mm |
| Wheelbase Size | 3000 mm | 2660 mm |
| Fuel Consumption Overall | 10.9 L/100km | 14.7 L/100km |
| Fuel Tank Capacity | 88 L | 63 L |
