2006 Alfa Romeo 166 vs. 2007 Chevrolet Optra
To start off, 2007 Chevrolet Optra is newer by 1 year(s). Which means there will be less support and parts availability for 2006 Alfa Romeo 166. In addition, the cost of maintenance, including insurance, on 2006 Alfa Romeo 166 would be higher. At 2,386 cc (5 cylinders), 2006 Alfa Romeo 166 is equipped with a bigger engine. In terms of performance, 2006 Alfa Romeo 166 (148 HP @ 4000 RPM) has 28 more horse power than 2007 Chevrolet Optra. (120 HP @ 5800 RPM). In normal driving conditions, 2006 Alfa Romeo 166 should accelerate faster than 2007 Chevrolet Optra. With that said, vehicle weight also plays an important factor in acceleration. 2006 Alfa Romeo 166 weights approximately 374 kg more than 2007 Chevrolet Optra. 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, 2006 Alfa Romeo 166 (305 Nm @ 1800 RPM) has 140 more torque (in Nm) than 2007 Chevrolet Optra. (165 Nm @ 4000 RPM). This means 2006 Alfa Romeo 166 will have an easier job in driving up hills or pulling heavy equipment than 2007 Chevrolet Optra.
Compare all specifications:
| 2006 Alfa Romeo 166 | 2007 Chevrolet Optra | |
| Make | Alfa Romeo | Chevrolet |
| Model | 166 | Optra |
| Year Released | 2006 | 2007 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2386 cc | 1799 cc |
| Engine Cylinders | 5 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 148 HP | 120 HP |
| Engine RPM | 4000 RPM | 5800 RPM |
| Torque | 305 Nm | 165 Nm |
| Torque RPM | 1800 RPM | 4000 RPM |
| Engine Bore Size | 82 mm | 81.6 mm |
| Engine Stroke Size | 90.4 mm | 86 mm |
| Engine Compression Ratio | 18.4:1 | 9.8:1 |
| Fuel Type | Diesel | Gasoline |
| Top Speed | 210 km/hour | 187 km/hour |
| Acceleration 0-100mph | 9.9 seconds | 10.3 seconds |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1585 kg | 1211 kg |
| Vehicle Length | 4730 mm | 4510 mm |
| Vehicle Width | 1810 mm | 1730 mm |
| Vehicle Height | 1420 mm | 1450 mm |
| Wheelbase Size | 2710 mm | 2610 mm |
| Fuel Consumption Overall | 7.2 L/100km | 11.8 L/100km |
| Fuel Tank Capacity | 69 L | 60 L |
