2003 Opel Signum vs. 2010 Alfa Romeo Brera
To start off, 2010 Alfa Romeo Brera is newer by 7 year(s). Which means there will be less support and parts availability for 2003 Opel Signum. In addition, the cost of maintenance, including insurance, on 2003 Opel Signum would be higher. At 3,193 cc (6 cylinders), 2010 Alfa Romeo Brera is equipped with a bigger engine. In terms of performance, 2010 Alfa Romeo Brera (256 HP @ 6200 RPM) has 81 more horse power than 2003 Opel Signum. (175 HP @ 4000 RPM) In normal driving conditions, 2010 Alfa Romeo Brera should accelerate faster than 2003 Opel Signum. With that said, vehicle weight also plays an important factor in acceleration. 2010 Alfa Romeo Brera weights approximately 35 kg more than 2003 Opel Signum. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2010 Alfa Romeo Brera is four wheel drive (4WD), it will have significant more traction and grip than 2003 Opel Signum. In wet, icy, snow, or gravel driving conditions, 2010 Alfa Romeo Brera will offer significantly more control. 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 Opel Signum (370 Nm @ 1900 RPM) has 48 more torque (in Nm) than 2010 Alfa Romeo Brera. (322 Nm @ 4500 RPM). This means 2003 Opel Signum will have an easier job in driving up hills or pulling heavy equipment than 2010 Alfa Romeo Brera.
Compare all specifications:
| 2003 Opel Signum | 2010 Alfa Romeo Brera | |
| Make | Opel | Alfa Romeo |
| Model | Signum | Brera |
| Year Released | 2003 | 2010 |
| Body Type | Hatchback | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 2958 cc | 3193 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 175 HP | 256 HP |
| Engine RPM | 4000 RPM | 6200 RPM |
| Torque | 370 Nm | 322 Nm |
| Torque RPM | 1900 RPM | 4500 RPM |
| Engine Compression Ratio | 18.5:1 | 11.3:1 |
| Top Speed | 221 km/hour | 240 km/hour |
| Acceleration 0-100mph | 9.4 seconds | 6.8 seconds |
| Drive Type | Front | 4WD |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 5 doors | 3 doors |
| Vehicle Weight | 1670 kg | 1705 kg |
| Vehicle Length | 4640 mm | 4420 mm |
| Vehicle Width | 1800 mm | 1840 mm |
| Vehicle Height | 1470 mm | 1350 mm |
| Wheelbase Size | 2700 mm | 2530 mm |
| Fuel Consumption Overall | 7.4 L/100km | 11.5 L/100km |
| Fuel Tank Capacity | 60 L | 70 L |
