2003 Opel Vectra vs. 2000 Alfa Romeo 166
To start off, 2003 Opel Vectra is newer by 3 year(s). Which means there will be less support and parts availability for 2000 Alfa Romeo 166. In addition, the cost of maintenance, including insurance, on 2000 Alfa Romeo 166 would be higher. At 2,387 cc (5 cylinders), 2000 Alfa Romeo 166 is equipped with a bigger engine. In terms of performance, 2000 Alfa Romeo 166 (136 HP @ 4000 RPM) has 13 more horse power than 2003 Opel Vectra. (123 HP @ 3250 RPM) In normal driving conditions, 2000 Alfa Romeo 166 should accelerate faster than 2003 Opel Vectra. With that said, vehicle weight also plays an important factor in acceleration. 2003 Opel Vectra weights approximately 143 kg more than 2000 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, 2000 Alfa Romeo 166 (304 Nm @ 2000 RPM) has 24 more torque (in Nm) than 2003 Opel Vectra. (280 Nm @ 1500 RPM). This means 2000 Alfa Romeo 166 will have an easier job in driving up hills or pulling heavy equipment than 2003 Opel Vectra. 2003 Opel Vectra has automatic transmission and 2000 Alfa Romeo 166 has manual transmission. 2000 Alfa Romeo 166 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2003 Opel Vectra will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2003 Opel Vectra | 2000 Alfa Romeo 166 | |
| Make | Opel | Alfa Romeo |
| Model | Vectra | 166 |
| Year Released | 2003 | 2000 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2171 cc | 2387 cc |
| Engine Cylinders | 4 cylinders | 5 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 123 HP | 136 HP |
| Engine RPM | 3250 RPM | 4000 RPM |
| Torque | 280 Nm | 304 Nm |
| Torque RPM | 1500 RPM | 2000 RPM |
| Engine Bore Size | 84 mm | 82.1 mm |
| Engine Stroke Size | 98 mm | 90.4 mm |
| Engine Compression Ratio | 18.5:1 | 18.5:1 |
| Acceleration 0-100mph | 12.2 seconds | 9 seconds |
| Drive Type | Front | Front |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1633 kg | 1490 kg |
| Vehicle Length | 4830 mm | 4730 mm |
| Vehicle Width | 1800 mm | 1820 mm |
| Vehicle Height | 1470 mm | 1420 mm |
| Wheelbase Size | 2610 mm | 2600 mm |
| Fuel Tank Capacity | 60 L | 72 L |
