2003 Alfa Romeo 156 vs. 2004 Mazda 6
To start off, 2004 Mazda 6 is newer by 1 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 1,840 cc (4 cylinders), 2004 Mazda 6 is equipped with a bigger engine. In terms of performance, 2003 Alfa Romeo 156 (138 HP @ 6200 RPM) has 19 more horse power than 2004 Mazda 6. (119 HP @ 5700 RPM). In normal driving conditions, 2003 Alfa Romeo 156 should accelerate faster than 2004 Mazda 6. With that said, vehicle weight also plays an important factor in acceleration. 2004 Mazda 6 weights approximately 80 kg more than 2003 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, 2004 Mazda 6 (168 Nm @ 4500 RPM) has 4 more torque (in Nm) than 2003 Alfa Romeo 156. (164 Nm @ 3900 RPM). This means 2004 Mazda 6 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 | 2004 Mazda 6 | |
| Make | Alfa Romeo | Mazda |
| Model | 156 | 6 |
| Year Released | 2003 | 2004 |
| Body Type | Sedan | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 1774 cc | 1840 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 138 HP | 119 HP |
| Engine RPM | 6200 RPM | 5700 RPM |
| Torque | 164 Nm | 168 Nm |
| Torque RPM | 3900 RPM | 4500 RPM |
| Engine Bore Size | 82 mm | 83 mm |
| Engine Stroke Size | 82.7 mm | 83.1 mm |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1340 kg | 1420 kg |
| Vehicle Length | 4440 mm | 4680 mm |
| Vehicle Width | 1750 mm | 1790 mm |
| Vehicle Height | 1400 mm | 1490 mm |
| Wheelbase Size | 2600 mm | 2680 mm |
| Fuel Tank Capacity | 63 L | 64 L |
