2003 Alfa Romeo 156 vs. 2007 Opel GT
To start off, 2007 Opel GT is newer by 4 year(s). Which means there will be less support and parts availability for 2003 Alfa Romeo 156. In addition, the cost of maintenance, including insurance, on 2003 Alfa Romeo 156 would be higher. At 2,492 cc (6 cylinders), 2003 Alfa Romeo 156 is equipped with a bigger engine. In terms of performance, 2007 Opel GT (260 HP @ 5300 RPM) has 71 more horse power than 2003 Alfa Romeo 156. (189 HP @ 6300 RPM) In normal driving conditions, 2007 Opel GT should accelerate faster than 2003 Alfa Romeo 156. With that said, vehicle weight also plays an important factor in acceleration. 2003 Alfa Romeo 156 weights approximately 75 kg more than 2007 Opel GT.
Because 2007 Opel GT is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 2007 Opel GT. However, in wet, icy, snow, or gravel driving conditions, 2003 Alfa Romeo 156, being front wheel drive (FWD), will offer much better control with better grip. 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, 2007 Opel GT (353 Nm @ 2500 RPM) has 135 more torque (in Nm) than 2003 Alfa Romeo 156. (218 Nm @ 5000 RPM). This means 2007 Opel GT will have an easier job in driving up hills or pulling heavy equipment than 2003 Alfa Romeo 156.
Compare all specifications:
| 2003 Alfa Romeo 156 | 2007 Opel GT | |
| Make | Alfa Romeo | Opel |
| Model | 156 | GT |
| Year Released | 2003 | 2007 |
| Body Type | Station Wagon | Coupe |
| Engine Position | Front | Front |
| Engine Size | 2492 cc | 1998 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 189 HP | 260 HP |
| Engine RPM | 6300 RPM | 5300 RPM |
| Torque | 218 Nm | 353 Nm |
| Torque RPM | 5000 RPM | 2500 RPM |
| Engine Bore Size | 88 mm | 86 mm |
| Engine Stroke Size | 68.3 mm | 86 mm |
| Engine Compression Ratio | 10.3:1 | 10.5:1 |
| Top Speed | 230 km/hour | 229 km/hour |
| Acceleration 0-100mph | 7.3 seconds | 6 seconds |
| Drive Type | Front | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1410 kg | 1335 kg |
| Vehicle Length | 4450 mm | 3790 mm |
| Vehicle Width | 1750 mm | 1820 mm |
| Vehicle Height | 1440 mm | 1280 mm |
| Wheelbase Size | 2600 mm | 2420 mm |
| Fuel Consumption Overall | 11.8 L/100km | 9.2 L/100km |
| Fuel Tank Capacity | 63 L | 50 L |
