2003 Alfa Romeo Spider vs. 2005 Alfa Romeo 156
To start off, 2005 Alfa Romeo 156 is newer by 2 year(s). Which means there will be less support and parts availability for 2003 Alfa Romeo Spider. In addition, the cost of maintenance, including insurance, on 2003 Alfa Romeo Spider would be higher. At 3,179 cc (6 cylinders), 2005 Alfa Romeo 156 is equipped with a bigger engine. In terms of performance, 2005 Alfa Romeo 156 (247 HP @ 6200 RPM) has 99 more horse power than 2003 Alfa Romeo Spider. (148 HP @ 6300 RPM) In normal driving conditions, 2005 Alfa Romeo 156 should accelerate faster than 2003 Alfa Romeo Spider. With that said, vehicle weight also plays an important factor in acceleration. 2003 Alfa Romeo Spider weights approximately 20 kg more than 2005 Alfa Romeo 156.
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 156 (305 Nm @ 4800 RPM) has 124 more torque (in Nm) than 2003 Alfa Romeo Spider. (181 Nm @ 3800 RPM). This means 2005 Alfa Romeo 156 will have an easier job in driving up hills or pulling heavy equipment than 2003 Alfa Romeo Spider.
Compare all specifications:
| 2003 Alfa Romeo Spider | 2005 Alfa Romeo 156 | |
| Make | Alfa Romeo | Alfa Romeo |
| Model | Spider | 156 |
| Year Released | 2003 | 2005 |
| Body Type | Roadster | Sedan |
| Engine Position | Front | Front |
| Engine Size | 1908 cc | 3179 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 148 HP | 247 HP |
| Engine RPM | 6300 RPM | 6200 RPM |
| Torque | 181 Nm | 305 Nm |
| Torque RPM | 3800 RPM | 4800 RPM |
| Engine Bore Size | 83 mm | 93 mm |
| Engine Stroke Size | 91 mm | 78 mm |
| Engine Compression Ratio | 18.5:1 | 10.5:1 |
| Acceleration 0-100mph | 8.4 seconds | 6.3 seconds |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1430 kg | 1410 kg |
| Vehicle Length | 4180 mm | 4440 mm |
| Vehicle Width | 1790 mm | 1770 mm |
| Vehicle Height | 1320 mm | 1410 mm |
| Wheelbase Size | 2600 mm | 2600 mm |
| Fuel Consumption Overall | 9.2 L/100km | 12.3 L/100km |
| Fuel Tank Capacity | 69 L | 63 L |
