2003 Alfa Romeo 166 vs. 2006 Chevrolet Optra
To start off, 2006 Chevrolet Optra is newer by 3 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 2,959 cc (6 cylinders), 2003 Alfa Romeo 166 is equipped with a bigger engine. In terms of performance, 2003 Alfa Romeo 166 (217 HP) has 109 more horse power than 2006 Chevrolet Optra. (108 HP). In normal driving conditions, 2003 Alfa Romeo 166 should accelerate faster than 2006 Chevrolet Optra. With that said, vehicle weight also plays an important factor in acceleration. 2006 Chevrolet Optra weights approximately 243 kg more than 2003 Alfa Romeo 166.
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 (265 Nm @ 5000 RPM) has 115 more torque (in Nm) than 2006 Chevrolet Optra. (150 Nm @ 4000 RPM). This means 2003 Alfa Romeo 166 will have an easier job in driving up hills or pulling heavy equipment than 2006 Chevrolet Optra. 2003 Alfa Romeo 166 has automatic transmission and 2006 Chevrolet Optra has manual transmission. 2006 Chevrolet Optra 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 166 | 2006 Chevrolet Optra | |
| Make | Alfa Romeo | Chevrolet |
| Model | 166 | Optra |
| Year Released | 2003 | 2006 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2959 cc | 1598 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 217 HP | 108 HP |
| Torque | 265 Nm | 150 Nm |
| Torque RPM | 5000 RPM | 4000 RPM |
| Engine Bore Size | 93 mm | 79.1 mm |
| Engine Stroke Size | 72.6 mm | 81.5 mm |
| Engine Compression Ratio | 10.0:1 | 9.5:1 |
| Drive Type | Front | Front |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1550 kg | 1793 kg |
| Vehicle Length | 4730 mm | 4440 mm |
| Vehicle Height | 1420 mm | 1250 mm |
| Wheelbase Size | 2600 mm | 2610 mm |
| Fuel Consumption Overall | 13 L/100km | 14 L/100km |
| Fuel Tank Capacity | 69 L | 60 L |
