2007 Alfa Romeo 156 vs. 2005 BMW 630
To start off, 2007 Alfa Romeo 156 is newer by 2 year(s). Which means there will be less support and parts availability for 2005 BMW 630. In addition, the cost of maintenance, including insurance, on 2005 BMW 630 would be higher. At 2,999 cc (6 cylinders), 2005 BMW 630 is equipped with a bigger engine. In terms of performance, 2005 BMW 630 (254 HP @ 6600 RPM) has 80 more horse power than 2007 Alfa Romeo 156. (174 HP @ 4000 RPM) In normal driving conditions, 2005 BMW 630 should accelerate faster than 2007 Alfa Romeo 156. With that said, vehicle weight also plays an important factor in acceleration. 2005 BMW 630 weights approximately 379 kg more than 2007 Alfa Romeo 156. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2005 BMW 630 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 2005 BMW 630. However, in wet, icy, snow, or gravel driving conditions, 2007 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, 2007 Alfa Romeo 156 (385 Nm @ 2000 RPM) has 85 more torque (in Nm) than 2005 BMW 630. (300 Nm @ 2500 RPM). This means 2007 Alfa Romeo 156 will have an easier job in driving up hills or pulling heavy equipment than 2005 BMW 630.
Compare all specifications:
| 2007 Alfa Romeo 156 | 2005 BMW 630 | |
| Make | Alfa Romeo | BMW |
| Model | 156 | 630 |
| Year Released | 2007 | 2005 |
| Body Type | Sedan | Convertible |
| Engine Position | Front | Front |
| Engine Size | 2387 cc | 2999 cc |
| Engine Cylinders | 5 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 174 HP | 254 HP |
| Engine RPM | 4000 RPM | 6600 RPM |
| Torque | 385 Nm | 300 Nm |
| Torque RPM | 2000 RPM | 2500 RPM |
| Engine Bore Size | 82 mm | 85 mm |
| Engine Stroke Size | 90.4 mm | 88 mm |
| Engine Compression Ratio | 18.5:1 | 10.7:1 |
| Fuel Type | Diesel | Gasoline - Premium |
| Top Speed | 225 km/hour | 250 km/hour |
| Acceleration 0-100mph | 9.4 seconds | 6.9 seconds |
| Drive Type | Front | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1385 kg | 1764 kg |
| Vehicle Length | 4440 mm | 4830 mm |
| Vehicle Width | 1750 mm | 1860 mm |
| Vehicle Height | 1440 mm | 1380 mm |
| Wheelbase Size | 2600 mm | 2670 mm |
| Fuel Consumption Overall | 6.6 L/100km | 9.6 L/100km |
| Fuel Tank Capacity | 63 L | 70 L |
