2005 Alfa Romeo 156 vs. 2007 Mercedes-Benz CLS
To start off, 2007 Mercedes-Benz CLS is newer by 2 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 3,179 cc (6 cylinders), 2005 Alfa Romeo 156 is equipped with a bigger engine. In terms of performance, 2005 Alfa Romeo 156 (247 HP @ 6200 RPM) has 26 more horse power than 2007 Mercedes-Benz CLS. (221 HP @ 3800 RPM). In normal driving conditions, 2005 Alfa Romeo 156 should accelerate faster than 2007 Mercedes-Benz CLS. With that said, vehicle weight also plays an important factor in acceleration. 2007 Mercedes-Benz CLS weights approximately 405 kg more than 2005 Alfa Romeo 156.
Because 2007 Mercedes-Benz CLS 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 Mercedes-Benz CLS. 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, 2007 Mercedes-Benz CLS (510 Nm @ 1600 RPM) has 205 more torque (in Nm) than 2005 Alfa Romeo 156. (305 Nm @ 4800 RPM). This means 2007 Mercedes-Benz CLS will have an easier job in driving up hills or pulling heavy equipment than 2005 Alfa Romeo 156. 2007 Mercedes-Benz CLS 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. 2007 Mercedes-Benz CLS will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2005 Alfa Romeo 156 | 2007 Mercedes-Benz CLS | |
| Make | Alfa Romeo | Mercedes-Benz |
| Model | 156 | CLS |
| Year Released | 2005 | 2007 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3179 cc | 2987 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 247 HP | 221 HP |
| Engine RPM | 6200 RPM | 3800 RPM |
| Torque | 305 Nm | 510 Nm |
| Torque RPM | 4800 RPM | 1600 RPM |
| Engine Bore Size | 93 mm | 83 mm |
| Engine Stroke Size | 78 mm | 92 mm |
| Engine Compression Ratio | 10.5:1 | 18.0:1 |
| Top Speed | 250 km/hour | 246 km/hour |
| Acceleration 0-100mph | 6.3 seconds | 7.3 seconds |
| Drive Type | Front | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1410 kg | 1815 kg |
| Vehicle Length | 4440 mm | 4920 mm |
| Vehicle Width | 1770 mm | 1880 mm |
| Vehicle Height | 1410 mm | 1410 mm |
| Wheelbase Size | 2600 mm | 2860 mm |
| Fuel Consumption Overall | 12.3 L/100km | 7.6 L/100km |
| Fuel Tank Capacity | 63 L | 80 L |
