2005 Alfa Romeo 156 vs. 2005 Pontiac Grand Prix
To start off, both 2005 Alfa Romeo 156 and 2005 Pontiac Grand Prix were released in the same year (2005). Therefore the support and the availability on parts for both vehicles should be relatively similar. At 3,786 cc (6 cylinders), 2005 Pontiac Grand Prix is equipped with a bigger engine. In terms of performance, 2005 Pontiac Grand Prix (260 HP @ 5200 RPM) has 75 more horse power than 2005 Alfa Romeo 156. (185 HP @ 5000 RPM) In normal driving conditions, 2005 Pontiac Grand Prix should accelerate faster than 2005 Alfa Romeo 156. With that said, vehicle weight also plays an important factor in acceleration. 2005 Pontiac Grand Prix weights approximately 130 kg more than 2005 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 Pontiac Grand Prix (380 Nm) has 158 more torque (in Nm) than 2005 Alfa Romeo 156. (222 Nm). This means 2005 Pontiac Grand Prix will have an easier job in driving up hills or pulling heavy equipment than 2005 Alfa Romeo 156.
Compare all specifications:
| 2005 Alfa Romeo 156 | 2005 Pontiac Grand Prix | |
| Make | Alfa Romeo | Pontiac |
| Model | 156 | Grand Prix |
| Year Released | 2005 | 2005 |
| Body Type | Station Wagon | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2492 cc | 3786 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 185 HP | 260 HP |
| Engine RPM | 5000 RPM | 5200 RPM |
| Torque | 222 Nm | 380 Nm |
| Engine Bore Size | 88 mm | 97.1 mm |
| Engine Stroke Size | 68.3 mm | 86 mm |
| Drive Type | Front | Front |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1490 kg | 1620 kg |
| Vehicle Length | 4450 mm | 5040 mm |
| Vehicle Width | 1750 mm | 1830 mm |
| Vehicle Height | 1440 mm | 1420 mm |
| Wheelbase Size | 2710 mm | 2810 mm |
| Fuel Consumption Overall | 11.8 L/100km | 10.7 L/100km |
| Fuel Tank Capacity | 72 L | 64 L |
