2003 Alfa Romeo 156 vs. 2003 Alfa Romeo 166
To start off, both 2003 Alfa Romeo 156 and 2003 Alfa Romeo 166 were released in the same year (2003). Therefore the support and the availability on parts for both vehicles should be relatively similar. At 3,179 cc (6 cylinders), 2003 Alfa Romeo 156 is equipped with a bigger engine. In terms of performance, 2003 Alfa Romeo 156 (247 HP @ 6200 RPM) has 30 more horse power than 2003 Alfa Romeo 166. (217 HP @ 6300 RPM). In normal driving conditions, 2003 Alfa Romeo 156 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 15 kg more than 2003 Alfa Romeo 156.
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 156 (306 Nm @ 4800 RPM) has 41 more torque (in Nm) than 2003 Alfa Romeo 166. (265 Nm @ 5000 RPM). This means 2003 Alfa Romeo 156 will have an easier job in driving up hills or pulling heavy equipment than 2003 Alfa Romeo 166. 2003 Alfa Romeo 166 has automatic transmission and 2003 Alfa Romeo 156 has manual transmission. 2003 Alfa Romeo 156 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2003 Alfa Romeo 166 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2003 Alfa Romeo 156 | 2003 Alfa Romeo 166 | |
| Make | Alfa Romeo | Alfa Romeo |
| Model | 156 | 166 |
| Year Released | 2003 | 2003 |
| Body Type | Station Wagon | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3179 cc | 2959 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 247 HP | 217 HP |
| Engine RPM | 6200 RPM | 6300 RPM |
| Torque | 306 Nm | 265 Nm |
| Torque RPM | 4800 RPM | 5000 RPM |
| Engine Compression Ratio | 10.5:1 | 10.0:1 |
| Top Speed | 245 km/hour | 236 km/hour |
| Drive Type | Front | Front |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1535 kg | 1550 kg |
| Vehicle Length | 4450 mm | 4730 mm |
| Vehicle Width | 1750 mm | 1810 mm |
| Vehicle Height | 1400 mm | 1420 mm |
| Wheelbase Size | 2550 mm | 2600 mm |
| Fuel Consumption Overall | 12.3 L/100km | 13 L/100km |
| Fuel Tank Capacity | 63 L | 69 L |
