2007 Alfa Romeo 147 vs. 2005 Mercedes-Benz SL
To start off, 2007 Alfa Romeo 147 is newer by 2 year(s). Which means there will be less support and parts availability for 2005 Mercedes-Benz SL. In addition, the cost of maintenance, including insurance, on 2005 Mercedes-Benz SL would be higher. At 3,722 cc (6 cylinders), 2005 Mercedes-Benz SL is equipped with a bigger engine. In terms of performance, 2005 Mercedes-Benz SL (247 HP @ 5700 RPM) has 133 more horse power than 2007 Alfa Romeo 147. (114 HP @ 4000 RPM) In normal driving conditions, 2005 Mercedes-Benz SL should accelerate faster than 2007 Alfa Romeo 147. With that said, vehicle weight also plays an important factor in acceleration. 2005 Mercedes-Benz SL weights approximately 465 kg more than 2007 Alfa Romeo 147. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2005 Mercedes-Benz SL 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 Mercedes-Benz SL. However, in wet, icy, snow, or gravel driving conditions, 2007 Alfa Romeo 147, 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, 2005 Mercedes-Benz SL (350 Nm @ 3000 RPM) has 75 more torque (in Nm) than 2007 Alfa Romeo 147. (275 Nm @ 2000 RPM). This means 2005 Mercedes-Benz SL will have an easier job in driving up hills or pulling heavy equipment than 2007 Alfa Romeo 147.
Compare all specifications:
| 2007 Alfa Romeo 147 | 2005 Mercedes-Benz SL | |
| Make | Alfa Romeo | Mercedes-Benz |
| Model | 147 | SL |
| Year Released | 2007 | 2005 |
| Engine Position | Front | Front |
| Engine Size | 1910 cc | 3722 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 2 valves | 3 valves |
| Horse Power | 114 HP | 247 HP |
| Engine RPM | 4000 RPM | 5700 RPM |
| Torque | 275 Nm | 350 Nm |
| Torque RPM | 2000 RPM | 3000 RPM |
| Engine Bore Size | 82 mm | 97 mm |
| Engine Stroke Size | 90.4 mm | 84 mm |
| Engine Compression Ratio | 18.5:1 | 10.0:1 |
| Fuel Type | Diesel | Gasoline - Premium |
| Top Speed | 191 km/hour | 250 km/hour |
| Acceleration 0-100mph | 10.2 seconds | 7.2 seconds |
| Drive Type | Front | Rear |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1290 kg | 1755 kg |
| Vehicle Length | 4230 mm | 4540 mm |
| Vehicle Width | 1740 mm | 1820 mm |
| Vehicle Height | 1450 mm | 1300 mm |
| Wheelbase Size | 2550 mm | 2570 mm |
| Fuel Consumption Overall | 5.8 L/100km | 11.6 L/100km |
| Fuel Tank Capacity | 60 L | 80 L |
