2007 Alpina B5 vs. 2005 Opel Astra
To start off, 2007 Alpina B5 is newer by 2 year(s). Which means there will be less support and parts availability for 2005 Opel Astra. In addition, the cost of maintenance, including insurance, on 2005 Opel Astra 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 344 more horse power than 2005 Opel Astra. (149 HP @ 5800 RPM). In normal driving conditions, 2007 Alpina B5 should accelerate faster than 2005 Opel Astra. With that said, vehicle weight also plays an important factor in acceleration. 2007 Alpina B5 weights approximately 329 kg more than 2005 Opel Astra. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2007 Alpina B5 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 2007 Alpina B5. However, in wet, icy, snow, or gravel driving conditions, 2005 Opel Astra, 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, 2007 Alpina B5 (700 Nm @ 4250 RPM) has 497 more torque (in Nm) than 2005 Opel Astra. (203 Nm @ 4000 RPM). This means 2007 Alpina B5 will have an easier job in driving up hills or pulling heavy equipment than 2005 Opel Astra.
Compare all specifications:
| 2007 Alpina B5 | 2005 Opel Astra | |
| Make | Alpina | Opel |
| Model | B5 | Astra |
| Year Released | 2007 | 2005 |
| Body Type | Sedan | Convertible |
| Engine Position | Front | Front |
| Engine Size | 4398 cc | 2172 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 493 HP | 149 HP |
| Engine RPM | 5500 RPM | 5800 RPM |
| Torque | 700 Nm | 203 Nm |
| Torque RPM | 4250 RPM | 4000 RPM |
| Engine Bore Size | 92 mm | 86 mm |
| Engine Stroke Size | 82.7 mm | 94.6 mm |
| Engine Compression Ratio | 9.0:1 | 10.0:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 314 km/hour | 216 km/hour |
| Acceleration 0-100mph | 4.7 seconds | 9.5 seconds |
| Drive Type | Rear | Front |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1722 kg | 1393 kg |
| Vehicle Length | 4850 mm | 4270 mm |
| Vehicle Width | 1850 mm | 1720 mm |
| Vehicle Height | 1470 mm | 1400 mm |
| Wheelbase Size | 2890 mm | 2710 mm |
| Fuel Consumption Overall | 12.3 L/100km | 8.7 L/100km |
| Fuel Tank Capacity | 70 L | 52 L |
