2007 Alfa Romeo 166 vs. 2003 Alfa Romeo 147
To start off, 2007 Alfa Romeo 166 is newer by 4 year(s). Which means there will be less support and parts availability for 2003 Alfa Romeo 147. In addition, the cost of maintenance, including insurance, on 2003 Alfa Romeo 147 would be higher. At 3,179 cc (6 cylinders), 2007 Alfa Romeo 166 is equipped with a bigger engine. In terms of performance, 2007 Alfa Romeo 166 (236 HP @ 6200 RPM) has 132 more horse power than 2003 Alfa Romeo 147. (104 HP @ 5600 RPM). In normal driving conditions, 2007 Alfa Romeo 166 should accelerate faster than 2003 Alfa Romeo 147. With that said, vehicle weight also plays an important factor in acceleration. 2007 Alfa Romeo 166 weights approximately 275 kg more than 2003 Alfa Romeo 147. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are front wheel drive (FWD). Which offers better traction when its slippery than rear wheel drive vehicles. 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 166 (289 Nm @ 4800 RPM) has 143 more torque (in Nm) than 2003 Alfa Romeo 147. (146 Nm @ 4200 RPM). This means 2007 Alfa Romeo 166 will have an easier job in driving up hills or pulling heavy equipment than 2003 Alfa Romeo 147.
Compare all specifications:
| 2007 Alfa Romeo 166 | 2003 Alfa Romeo 147 | |
| Make | Alfa Romeo | Alfa Romeo |
| Model | 166 | 147 |
| Year Released | 2007 | 2003 |
| Engine Position | Front | Front |
| Engine Size | 3179 cc | 1598 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 236 HP | 104 HP |
| Engine RPM | 6200 RPM | 5600 RPM |
| Torque | 289 Nm | 146 Nm |
| Torque RPM | 4800 RPM | 4200 RPM |
| Engine Bore Size | 93.1 mm | 82 mm |
| Engine Stroke Size | 78 mm | 75.7 mm |
| Engine Compression Ratio | 10.5:1 | 10.3:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 3 doors |
| Vehicle Weight | 1540 kg | 1265 kg |
| Vehicle Length | 4730 mm | 4180 mm |
| Vehicle Width | 1810 mm | 1740 mm |
| Vehicle Height | 1420 mm | 1450 mm |
| Wheelbase Size | 2710 mm | 2550 mm |
| Fuel Consumption Overall | 12.5 L/100km | 8.1 L/100km |
| Fuel Tank Capacity | 69 L | 63 L |
