2004 Alfa Romeo 156 vs. 1999 Alfa Romeo 166
To start off, 2004 Alfa Romeo 156 is newer by 5 year(s). Which means there will be less support and parts availability for 1999 Alfa Romeo 166. In addition, the cost of maintenance, including insurance, on 1999 Alfa Romeo 166 would be higher. At 1,970 cc (4 cylinders), 1999 Alfa Romeo 166 is equipped with a bigger engine. In terms of performance, 1999 Alfa Romeo 166 (155 HP @ 6400 RPM) has 7 more horse power than 2004 Alfa Romeo 156. (148 HP @ 4000 RPM) In normal driving conditions, 1999 Alfa Romeo 166 should accelerate faster than 2004 Alfa Romeo 156. With that said, vehicle weight also plays an important factor in acceleration. 2004 Alfa Romeo 156 weights approximately 30 kg more than 1999 Alfa Romeo 166.
Because 2004 Alfa Romeo 156 is four wheel drive (4WD), it will have significant more traction and grip than 1999 Alfa Romeo 166. In wet, icy, snow, or gravel driving conditions, 2004 Alfa Romeo 156 will offer significantly more control. 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, 2004 Alfa Romeo 156 (300 Nm @ 2000 RPM) has 113 more torque (in Nm) than 1999 Alfa Romeo 166. (187 Nm @ 2800 RPM). This means 2004 Alfa Romeo 156 will have an easier job in driving up hills or pulling heavy equipment than 1999 Alfa Romeo 166.
Compare all specifications:
| 2004 Alfa Romeo 156 | 1999 Alfa Romeo 166 | |
| Make | Alfa Romeo | Alfa Romeo |
| Model | 156 | 166 |
| Year Released | 2004 | 1999 |
| Body Type | Station Wagon | Sedan |
| Engine Position | Front | Front |
| Engine Size | 1910 cc | 1970 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 148 HP | 155 HP |
| Engine RPM | 4000 RPM | 6400 RPM |
| Torque | 300 Nm | 187 Nm |
| Torque RPM | 2000 RPM | 2800 RPM |
| Engine Bore Size | 82 mm | 83.1 mm |
| Engine Stroke Size | 90.4 mm | 91 mm |
| Engine Compression Ratio | 18.5:1 | 10.0:1 |
| Acceleration 0-100mph | 10.5 seconds | 9.6 seconds |
| Drive Type | 4WD | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1525 kg | 1495 kg |
| Vehicle Width | 1750 mm | 1820 mm |
| Vehicle Height | 1460 mm | 1420 mm |
| Wheelbase Size | 2600 mm | 2710 mm |
| Fuel Tank Capacity | 63 L | 72 L |
