2003 Alfa Romeo 156 vs. 2005 Mercury Mariner
To start off, 2005 Mercury Mariner is newer by 2 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 2,999 cc (6 cylinders), 2005 Mercury Mariner is equipped with a bigger engine. In terms of performance, 2005 Mercury Mariner (201 HP) has 82 more horse power than 2003 Alfa Romeo 156. (119 HP) In normal driving conditions, 2005 Mercury Mariner should accelerate faster than 2003 Alfa Romeo 156. With that said, vehicle weight also plays an important factor in acceleration. 2005 Mercury Mariner weights approximately 159 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, 2005 Mercury Mariner (262 Nm) has 116 more torque (in Nm) than 2003 Alfa Romeo 156. (146 Nm). This means 2005 Mercury Mariner 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 | 2005 Mercury Mariner | |
| Make | Alfa Romeo | Mercury |
| Model | 156 | Mariner |
| Year Released | 2003 | 2005 |
| Body Type | Sedan | SUV |
| Engine Position | Front | Front |
| Engine Size | 1598 cc | 2999 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 119 HP | 201 HP |
| Torque | 146 Nm | 262 Nm |
| Engine Bore Size | 82 mm | 89 mm |
| Engine Stroke Size | 75.6 mm | 80 mm |
| Engine Compression Ratio | 10.3:1 | 10.0:1 |
| Drive Type | Front | Front |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1340 kg | 1499 kg |
| Vehicle Length | 4440 mm | 4430 mm |
| Vehicle Width | 1750 mm | 1790 mm |
| Vehicle Height | 1400 mm | 1730 mm |
| Wheelbase Size | 2600 mm | 2630 mm |
| Fuel Consumption Overall | 8.2 L/100km | 10.7 L/100km |
| Fuel Tank Capacity | 63 L | 62 L |
