2003 Alfa Romeo 156 vs. 2007 Mazda 6
To start off, 2007 Mazda 6 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 2,259 cc (4 cylinders), 2007 Mazda 6 is equipped with a bigger engine. In terms of performance, 2007 Mazda 6 (156 HP @ 6500 RPM) has 43 more horse power than 2003 Alfa Romeo 156. (113 HP @ 4000 RPM) In normal driving conditions, 2007 Mazda 6 should accelerate faster than 2003 Alfa Romeo 156. With that said, vehicle weight also plays an important factor in acceleration. 2007 Mazda 6 weights approximately 76 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, 2003 Alfa Romeo 156 (275 Nm @ 2000 RPM) has 66 more torque (in Nm) than 2007 Mazda 6. (209 Nm @ 4000 RPM). This means 2003 Alfa Romeo 156 will have an easier job in driving up hills or pulling heavy equipment than 2007 Mazda 6.
Compare all specifications:
| 2003 Alfa Romeo 156 | 2007 Mazda 6 | |
| Make | Alfa Romeo | Mazda |
| Model | 156 | 6 |
| Year Released | 2003 | 2007 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 1970 cc | 2259 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 113 HP | 156 HP |
| Engine RPM | 4000 RPM | 6500 RPM |
| Torque | 275 Nm | 209 Nm |
| Torque RPM | 2000 RPM | 4000 RPM |
| Engine Bore Size | 82 mm | 87.5 mm |
| Engine Stroke Size | 90.4 mm | 94 mm |
| Fuel Type | Diesel | Gasoline - Premium |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1305 kg | 1381 kg |
| Vehicle Length | 4440 mm | 4750 mm |
| Vehicle Width | 1750 mm | 1790 mm |
| Vehicle Height | 1440 mm | 1450 mm |
| Wheelbase Size | 2600 mm | 2680 mm |
| Fuel Consumption | 4.9 L/100km | 7.4 L/100km |
| Fuel Consumption City | 8 L/100km | 9.8 L/100km |
| Fuel Consumption Overall | 6 L/100km | 8.7 L/100km |
| Fuel Tank Capacity | 63 L | 68 L |
