2009 Alfa Romeo Brera vs. 2007 Opel Astra
To start off, 2009 Alfa Romeo Brera is newer by 2 year(s). Which means there will be less support and parts availability for 2007 Opel Astra. In addition, the cost of maintenance, including insurance, on 2007 Opel Astra would be higher. At 2,387 cc (5 cylinders), 2009 Alfa Romeo Brera is equipped with a bigger engine. In terms of performance, 2009 Alfa Romeo Brera (197 HP @ 4000 RPM) has 93 more horse power than 2007 Opel Astra. (104 HP @ 6000 RPM). In normal driving conditions, 2009 Alfa Romeo Brera should accelerate faster than 2007 Opel Astra. With that said, vehicle weight also plays an important factor in acceleration. 2009 Alfa Romeo Brera weights approximately 445 kg more than 2007 Opel Astra. 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, 2009 Alfa Romeo Brera (400 Nm @ 2000 RPM) has 250 more torque (in Nm) than 2007 Opel Astra. (150 Nm @ 3900 RPM). This means 2009 Alfa Romeo Brera will have an easier job in driving up hills or pulling heavy equipment than 2007 Opel Astra.
Compare all specifications:
| 2009 Alfa Romeo Brera | 2007 Opel Astra | |
| Make | Alfa Romeo | Opel |
| Model | Brera | Astra |
| Year Released | 2009 | 2007 |
| Engine Position | Front | Front |
| Engine Size | 2387 cc | 1589 cc |
| Engine Cylinders | 5 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 197 HP | 104 HP |
| Engine RPM | 4000 RPM | 6000 RPM |
| Torque | 400 Nm | 150 Nm |
| Torque RPM | 2000 RPM | 3900 RPM |
| Engine Bore Size | 82.1 mm | 79 mm |
| Engine Stroke Size | 90.4 mm | 81.5 mm |
| Engine Compression Ratio | 17.0:1 | 10.5:1 |
| Fuel Type | Diesel | Gasoline |
| Acceleration 0-100mph | 8.1 seconds | 12.6 seconds |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 3 doors | 5 doors |
| Vehicle Weight | 1675 kg | 1230 kg |
| Vehicle Length | 4420 mm | 4260 mm |
| Vehicle Width | 1840 mm | 1760 mm |
| Vehicle Height | 1350 mm | 1470 mm |
| Wheelbase Size | 2530 mm | 2620 mm |
| Fuel Consumption Overall | 6.8 L/100km | 6.3 L/100km |
| Fuel Tank Capacity | 70 L | 52 L |
