1998 Alfa Romeo 145 vs. 2005 Opel Signum
To start off, 2005 Opel Signum is newer by 7 year(s). Which means there will be less support and parts availability for 1998 Alfa Romeo 145. In addition, the cost of maintenance, including insurance, on 1998 Alfa Romeo 145 would be higher. At 2,171 cc (4 cylinders), 2005 Opel Signum is equipped with a bigger engine. In terms of performance, 2005 Opel Signum (124 HP @ 3250 RPM) has 22 more horse power than 1998 Alfa Romeo 145. (102 HP @ 6300 RPM) In normal driving conditions, 2005 Opel Signum should accelerate faster than 1998 Alfa Romeo 145. With that said, vehicle weight also plays an important factor in acceleration. 2005 Opel Signum weights approximately 470 kg more than 1998 Alfa Romeo 145. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 2005 Opel Signum (280 Nm @ 1500 RPM) has 156 more torque (in Nm) than 1998 Alfa Romeo 145. (124 Nm @ 4600 RPM). This means 2005 Opel Signum will have an easier job in driving up hills or pulling heavy equipment than 1998 Alfa Romeo 145.
Compare all specifications:
| 1998 Alfa Romeo 145 | 2005 Opel Signum | |
| Make | Alfa Romeo | Opel |
| Model | 145 | Signum |
| Year Released | 1998 | 2005 |
| Engine Position | Front | Front |
| Engine Size | 1370 cc | 2171 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 102 HP | 124 HP |
| Engine RPM | 6300 RPM | 3250 RPM |
| Torque | 124 Nm | 280 Nm |
| Torque RPM | 4600 RPM | 1500 RPM |
| Fuel Type | Gasoline | Diesel |
| Vehicle Weight | 1140 kg | 1610 kg |
| Vehicle Length | 4100 mm | 4640 mm |
| Vehicle Width | 1720 mm | 1800 mm |
| Vehicle Height | 1430 mm | 1470 mm |
| Wheelbase Size | 2550 mm | 2710 mm |
