2003 Alfa Romeo Spider vs. 2004 Alfa Romeo 156
To start off, 2004 Alfa Romeo 156 is newer by 1 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), 2003 Alfa Romeo Spider is equipped with a bigger engine. In terms of performance, 2003 Alfa Romeo Spider (248 HP @ 6300 RPM) has 135 more horse power than 2004 Alfa Romeo 156. (113 HP @ 4000 RPM). In normal driving conditions, 2003 Alfa Romeo Spider should accelerate faster than 2004 Alfa Romeo 156. With that said, vehicle weight also plays an important factor in acceleration. 2003 Alfa Romeo Spider weights approximately 85 kg more than 2004 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, 2003 Alfa Romeo Spider (305 Nm @ 4800 RPM) has 30 more torque (in Nm) than 2004 Alfa Romeo 156. (275 Nm @ 2000 RPM). This means 2003 Alfa Romeo Spider will have an easier job in driving up hills or pulling heavy equipment than 2004 Alfa Romeo 156.
Compare all specifications:
| 2003 Alfa Romeo Spider | 2004 Alfa Romeo 156 | |
| Make | Alfa Romeo | Alfa Romeo |
| Model | Spider | 156 |
| Year Released | 2003 | 2004 |
| Body Type | Roadster | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3179 cc | 1969 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 248 HP | 113 HP |
| Engine RPM | 6300 RPM | 4000 RPM |
| Torque | 305 Nm | 275 Nm |
| Torque RPM | 4800 RPM | 2000 RPM |
| Engine Bore Size | 93 mm | 82 mm |
| Engine Stroke Size | 78 mm | 90.4 mm |
| Engine Compression Ratio | 10.3:1 | 18.4:1 |
| Fuel Type | Gasoline | Diesel |
| Acceleration 0-100mph | 6.3 seconds | 10.3 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 | 1490 kg | 1405 kg |
| Vehicle Length | 4310 mm | 4440 mm |
| Vehicle Width | 1780 mm | 1750 mm |
| Vehicle Height | 1330 mm | 1400 mm |
| Wheelbase Size | 2600 mm | 2550 mm |
| Fuel Consumption Overall | 13.2 L/100km | 5.8 L/100km |
| Fuel Tank Capacity | 70 L | 63 L |
