2005 Mazda 3 vs. 2010 Alfa Romeo 147
To start off, 2010 Alfa Romeo 147 is newer by 5 year(s). Which means there will be less support and parts availability for 2005 Mazda 3. In addition, the cost of maintenance, including insurance, on 2005 Mazda 3 would be higher. At 1,970 cc (4 cylinders), 2010 Alfa Romeo 147 is equipped with a bigger engine. In terms of performance, 2010 Alfa Romeo 147 (148 HP @ 6300 RPM) has 40 more horse power than 2005 Mazda 3. (108 HP @ 4000 RPM) In normal driving conditions, 2010 Alfa Romeo 147 should accelerate faster than 2005 Mazda 3. With that said, vehicle weight also plays an important factor in acceleration. 2010 Alfa Romeo 147 weights approximately 85 kg more than 2005 Mazda 3. 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 Mazda 3 (225 Nm @ 1750 RPM) has 44 more torque (in Nm) than 2010 Alfa Romeo 147. (181 Nm @ 3800 RPM). This means 2005 Mazda 3 will have an easier job in driving up hills or pulling heavy equipment than 2010 Alfa Romeo 147.
Compare all specifications:
| 2005 Mazda 3 | 2010 Alfa Romeo 147 | |
| Make | Mazda | Alfa Romeo |
| Model | 3 | 147 |
| Year Released | 2005 | 2010 |
| Engine Position | Front | Front |
| Engine Size | 1560 cc | 1970 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 108 HP | 148 HP |
| Engine RPM | 4000 RPM | 6300 RPM |
| Torque | 225 Nm | 181 Nm |
| Torque RPM | 1750 RPM | 3800 RPM |
| Engine Bore Size | 75 mm | 83.1 mm |
| Engine Stroke Size | 88.3 mm | 91 mm |
| Engine Compression Ratio | 18.3:1 | 10.0:1 |
| Fuel Type | Diesel | Gasoline |
| Acceleration 0-100mph | 11.6 seconds | 9.3 seconds |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 3 doors | 5 doors |
| Vehicle Weight | 1240 kg | 1325 kg |
| Vehicle Length | 4500 mm | 4230 mm |
| Vehicle Width | 1760 mm | 1740 mm |
| Vehicle Height | 1420 mm | 1450 mm |
| Wheelbase Size | 2680 mm | 2550 mm |
| Fuel Consumption Overall | 5 L/100km | 8.9 L/100km |
| Fuel Tank Capacity | 55 L | 60 L |
