2005 Alfa Romeo 156 vs. 2009 BMW M5
To start off, 2009 BMW M5 is newer by 4 year(s). Which means there will be less support and parts availability for 2005 Alfa Romeo 156. In addition, the cost of maintenance, including insurance, on 2005 Alfa Romeo 156 would be higher. At 4,999 cc (10 cylinders), 2009 BMW M5 is equipped with a bigger engine. In terms of performance, 2009 BMW M5 (500 HP @ 7750 RPM) has 253 more horse power than 2005 Alfa Romeo 156. (247 HP @ 6200 RPM) In normal driving conditions, 2009 BMW M5 should accelerate faster than 2005 Alfa Romeo 156. With that said, vehicle weight also plays an important factor in acceleration. 2009 BMW M5 weights approximately 348 kg more than 2005 Alfa Romeo 156. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2009 BMW M5 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 2009 BMW M5. However, in wet, icy, snow, or gravel driving conditions, 2005 Alfa Romeo 156, 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, 2009 BMW M5 (519 Nm @ 6100 RPM) has 214 more torque (in Nm) than 2005 Alfa Romeo 156. (305 Nm @ 4800 RPM). This means 2009 BMW M5 will have an easier job in driving up hills or pulling heavy equipment than 2005 Alfa Romeo 156.
Compare all specifications:
| 2005 Alfa Romeo 156 | 2009 BMW M5 | |
| Make | Alfa Romeo | BMW |
| Model | 156 | M5 |
| Year Released | 2005 | 2009 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3179 cc | 4999 cc |
| Engine Cylinders | 6 cylinders | 10 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 247 HP | 500 HP |
| Engine RPM | 6200 RPM | 7750 RPM |
| Torque | 305 Nm | 519 Nm |
| Torque RPM | 4800 RPM | 6100 RPM |
| Engine Compression Ratio | 10.5:1 | 12.0:1 |
| Top Speed | 250 km/hour | 250 km/hour |
| Acceleration 0-100mph | 6.3 seconds | 4.7 seconds |
| Drive Type | Front | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1410 kg | 1758 kg |
| Vehicle Length | 4440 mm | 4850 mm |
| Vehicle Width | 1770 mm | 1850 mm |
| Vehicle Height | 1410 mm | 1470 mm |
| Wheelbase Size | 2600 mm | 2890 mm |
| Fuel Consumption Overall | 12.3 L/100km | 14.8 L/100km |
| Fuel Tank Capacity | 63 L | 70 L |
