1999 Alfa Romeo 145 vs. 2006 Opel Signum
To start off, 2006 Opel Signum is newer by 7 year(s). Which means there will be less support and parts availability for 1999 Alfa Romeo 145. In addition, the cost of maintenance, including insurance, on 1999 Alfa Romeo 145 would be higher. At 2,958 cc (6 cylinders), 2006 Opel Signum is equipped with a bigger engine. In terms of performance, 2006 Opel Signum (175 HP @ 4000 RPM) has 22 more horse power than 1999 Alfa Romeo 145. (153 HP @ 6400 RPM) In normal driving conditions, 2006 Opel Signum should accelerate faster than 1999 Alfa Romeo 145. With that said, vehicle weight also plays an important factor in acceleration. 2006 Opel Signum weights approximately 428 kg more than 1999 Alfa Romeo 145. 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 Opel Signum (370 Nm @ 1900 RPM) has 183 more torque (in Nm) than 1999 Alfa Romeo 145. (187 Nm @ 3500 RPM). This means 2006 Opel Signum will have an easier job in driving up hills or pulling heavy equipment than 1999 Alfa Romeo 145. 2006 Opel Signum has automatic transmission and 1999 Alfa Romeo 145 has manual transmission. 1999 Alfa Romeo 145 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2006 Opel Signum will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1999 Alfa Romeo 145 | 2006 Opel Signum | |
| Make | Alfa Romeo | Opel |
| Model | 145 | Signum |
| Year Released | 1999 | 2006 |
| Engine Position | Front | Front |
| Engine Size | 1970 cc | 2958 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 153 HP | 175 HP |
| Engine RPM | 6400 RPM | 4000 RPM |
| Torque | 187 Nm | 370 Nm |
| Torque RPM | 3500 RPM | 1900 RPM |
| Engine Bore Size | 83 mm | 87.5 mm |
| Engine Stroke Size | 91.1 mm | 82 mm |
| Engine Compression Ratio | 10.0:1 | 18.5:1 |
| Top Speed | 211 km/hour | 221 km/hour |
| Acceleration 0-100mph | 8.3 seconds | 9.4 seconds |
| Drive Type | Front | Front |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 3 doors | 5 doors |
| Vehicle Weight | 1242 kg | 1670 kg |
| Vehicle Length | 4070 mm | 4640 mm |
| Vehicle Width | 1720 mm | 1800 mm |
| Vehicle Height | 1440 mm | 1470 mm |
| Wheelbase Size | 2550 mm | 2840 mm |
| Fuel Consumption Overall | 13.6 L/100km | 7.6 L/100km |
| Fuel Tank Capacity | 61 L | 60 L |
