2003 Alfa Romeo 166 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 166. In addition, the cost of maintenance, including insurance, on 2003 Alfa Romeo 166 would be higher. At 3,177 cc (6 cylinders), 2003 Alfa Romeo 166 is equipped with a bigger engine. In terms of performance, 2003 Alfa Romeo 166 (247 HP @ 6200 RPM) has 128 more horse power than 2004 Mazda 6. (119 HP @ 5300 RPM). In normal driving conditions, 2003 Alfa Romeo 166 should accelerate faster than 2004 Mazda 6. With that said, vehicle weight also plays an important factor in acceleration. 2003 Alfa Romeo 166 weights approximately 120 kg more than 2004 Mazda 6. 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 166 (289 Nm @ 4800 RPM) has 121 more torque (in Nm) than 2004 Mazda 6. (168 Nm @ 4500 RPM). This means 2003 Alfa Romeo 166 will have an easier job in driving up hills or pulling heavy equipment than 2004 Mazda 6.
Compare all specifications:
| 2003 Alfa Romeo 166 | 2004 Mazda 6 | |
| Make | Alfa Romeo | Mazda |
| Model | 166 | 6 |
| Year Released | 2003 | 2004 |
| Body Type | Sedan | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 3177 cc | 1798 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 247 HP | 119 HP |
| Engine RPM | 6200 RPM | 5300 RPM |
| Torque | 289 Nm | 168 Nm |
| Torque RPM | 4800 RPM | 4500 RPM |
| Engine Compression Ratio | 10.5:1 | 11.0:1 |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1540 kg | 1420 kg |
| Vehicle Length | 4730 mm | 4690 mm |
| Vehicle Width | 1810 mm | 1790 mm |
| Vehicle Height | 1420 mm | 1440 mm |
| Wheelbase Size | 2550 mm | 2680 mm |
| Fuel Tank Capacity | 69 L | 64 L |
