2003 Alfa Romeo 166 vs. 2011 Citroen C4
To start off, 2011 Citroen C4 is newer by 8 year(s). Which means there will be less support and parts availability for 2003 Alfa Romeo 166. In addition, the cost of maintenance, including insurance, on 2003 Alfa Romeo 166 would be higher. At 2,387 cc (5 cylinders), 2003 Alfa Romeo 166 is equipped with a bigger engine. In terms of performance, 2011 Citroen C4 (181 HP @ 7000 RPM) has 33 more horse power than 2003 Alfa Romeo 166. (148 HP @ 4000 RPM) In normal driving conditions, 2011 Citroen C4 should accelerate faster than 2003 Alfa Romeo 166. With that said, vehicle weight also plays an important factor in acceleration. 2003 Alfa Romeo 166 weights approximately 205 kg more than 2011 Citroen C4.
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, 2003 Alfa Romeo 166 (300 Nm @ 1800 RPM) has 120 more torque (in Nm) than 2011 Citroen C4. (180 Nm @ 7000 RPM). This means 2003 Alfa Romeo 166 will have an easier job in driving up hills or pulling heavy equipment than 2011 Citroen C4.
Compare all specifications:
| 2003 Alfa Romeo 166 | 2011 Citroen C4 | |
| Make | Alfa Romeo | Citroen |
| Model | 166 | C4 |
| Year Released | 2003 | 2011 |
| Body Type | Sedan | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 2387 cc | 1997 cc |
| Engine Cylinders | 5 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 148 HP | 181 HP |
| Engine RPM | 4000 RPM | 7000 RPM |
| Torque | 300 Nm | 180 Nm |
| Torque RPM | 1800 RPM | 7000 RPM |
| Engine Bore Size | 82 mm | 85 mm |
| Engine Stroke Size | 90.4 mm | 88 mm |
| Engine Compression Ratio | 18.5:1 | 10.8:1 |
| Fuel Type | Diesel | Gasoline |
| Top Speed | 210 km/hour | 227 km/hour |
| Acceleration 0-100mph | 9.9 seconds | 8.6 seconds |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 3 doors |
| Vehicle Weight | 1542 kg | 1337 kg |
| Vehicle Length | 4730 mm | 4270 mm |
| Vehicle Width | 1810 mm | 1780 mm |
| Vehicle Height | 1420 mm | 1460 mm |
| Wheelbase Size | 2600 mm | 2610 mm |
| Fuel Consumption Overall | 7.5 L/100km | 11.5 L/100km |
| Fuel Tank Capacity | 69 L | 60 L |
