2003 Alfa Romeo 156 vs. 2005 Alfa Romeo Spider
To start off, 2005 Alfa Romeo Spider is newer by 2 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 2,957 cc (6 cylinders), 2005 Alfa Romeo Spider is equipped with a bigger engine. In terms of performance, 2005 Alfa Romeo Spider (215 HP @ 5000 RPM) has 77 more horse power than 2003 Alfa Romeo 156. (138 HP @ 6200 RPM) In normal driving conditions, 2005 Alfa Romeo Spider should accelerate faster than 2003 Alfa Romeo 156. With that said, vehicle weight also plays an important factor in acceleration. 2005 Alfa Romeo Spider weights approximately 15 kg more than 2003 Alfa Romeo 156. 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, 2005 Alfa Romeo Spider (265 Nm @ 5000 RPM) has 101 more torque (in Nm) than 2003 Alfa Romeo 156. (164 Nm @ 3900 RPM). This means 2005 Alfa Romeo Spider 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 | 2005 Alfa Romeo Spider | |
| Make | Alfa Romeo | Alfa Romeo |
| Model | 156 | Spider |
| Year Released | 2003 | 2005 |
| Body Type | Sedan | Roadster |
| Engine Position | Front | Front |
| Engine Size | 1774 cc | 2957 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 138 HP | 215 HP |
| Engine RPM | 6200 RPM | 5000 RPM |
| Torque | 164 Nm | 265 Nm |
| Torque RPM | 3900 RPM | 5000 RPM |
| Engine Bore Size | 82 mm | 93 mm |
| Engine Stroke Size | 82.7 mm | 72.6 mm |
| Top Speed | 208 km/hour | 235 km/hour |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1340 kg | 1355 kg |
| Vehicle Length | 4440 mm | 4290 mm |
| Vehicle Width | 1750 mm | 1790 mm |
| Vehicle Height | 1400 mm | 1320 mm |
| Wheelbase Size | 2600 mm | 2600 mm |
| Fuel Consumption Overall | 8.5 L/100km | 11 L/100km |
| Fuel Tank Capacity | 63 L | 70 L |
