2005 Alfa Romeo 156 vs. 2006 BMW 545
To start off, 2006 BMW 545 is newer by 1 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 4,396 cc (8 cylinders), 2006 BMW 545 is equipped with a bigger engine. In terms of performance, 2006 BMW 545 (328 HP @ 6100 RPM) has 81 more horse power than 2005 Alfa Romeo 156. (247 HP @ 6200 RPM) In normal driving conditions, 2006 BMW 545 should accelerate faster than 2005 Alfa Romeo 156. With that said, vehicle weight also plays an important factor in acceleration. 2006 BMW 545 weights approximately 425 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 2006 BMW 545 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 2006 BMW 545. 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, 2006 BMW 545 (450 Nm @ 3600 RPM) has 145 more torque (in Nm) than 2005 Alfa Romeo 156. (305 Nm @ 4800 RPM). This means 2006 BMW 545 will have an easier job in driving up hills or pulling heavy equipment than 2005 Alfa Romeo 156. 2006 BMW 545 has automatic transmission and 2005 Alfa Romeo 156 has manual transmission. 2005 Alfa Romeo 156 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2006 BMW 545 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2005 Alfa Romeo 156 | 2006 BMW 545 | |
| Make | Alfa Romeo | BMW |
| Model | 156 | 545 |
| Year Released | 2005 | 2006 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3179 cc | 4396 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 247 HP | 328 HP |
| Engine RPM | 6200 RPM | 6100 RPM |
| Torque | 305 Nm | 450 Nm |
| Torque RPM | 4800 RPM | 3600 RPM |
| Engine Bore Size | 93 mm | 92 mm |
| Engine Stroke Size | 78 mm | 83 mm |
| Engine Compression Ratio | 10.5:1 | 10.0:1 |
| Top Speed | 250 km/hour | 250 km/hour |
| Acceleration 0-100mph | 6.3 seconds | 5.9 seconds |
| Drive Type | Front | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1410 kg | 1835 kg |
| Vehicle Length | 4440 mm | 4850 mm |
| Vehicle Width | 1770 mm | 1850 mm |
| Vehicle Height | 1410 mm | 1380 mm |
| Wheelbase Size | 2600 mm | 2890 mm |
| Fuel Consumption Overall | 12.3 L/100km | 10.6 L/100km |
| Fuel Tank Capacity | 63 L | 70 L |
