2006 Alfa Romeo 156 vs. 2007 Pontiac Grand Prix
To start off, 2007 Pontiac Grand Prix is newer by 1 year(s). Which means there will be less support and parts availability for 2006 Alfa Romeo 156. In addition, the cost of maintenance, including insurance, on 2006 Alfa Romeo 156 would be higher. At 3,790 cc (6 cylinders), 2007 Pontiac Grand Prix is equipped with a bigger engine. In terms of performance, 2007 Pontiac Grand Prix (260 HP @ 5400 RPM) has 70 more horse power than 2006 Alfa Romeo 156. (190 HP @ 6300 RPM) In normal driving conditions, 2007 Pontiac Grand Prix should accelerate faster than 2006 Alfa Romeo 156. With that said, vehicle weight also plays an important factor in acceleration. 2006 Alfa Romeo 156 weights approximately 268 kg more than 2007 Pontiac Grand Prix.
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, 2007 Pontiac Grand Prix (380 Nm @ 3600 RPM) has 162 more torque (in Nm) than 2006 Alfa Romeo 156. (218 Nm @ 5000 RPM). This means 2007 Pontiac Grand Prix will have an easier job in driving up hills or pulling heavy equipment than 2006 Alfa Romeo 156. 2007 Pontiac Grand Prix has automatic transmission and 2006 Alfa Romeo 156 has manual transmission. 2006 Alfa Romeo 156 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2007 Pontiac Grand Prix will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2006 Alfa Romeo 156 | 2007 Pontiac Grand Prix | |
| Make | Alfa Romeo | Pontiac |
| Model | 156 | Grand Prix |
| Year Released | 2006 | 2007 |
| Body Type | Station Wagon | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2492 cc | 3790 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 190 HP | 260 HP |
| Engine RPM | 6300 RPM | 5400 RPM |
| Torque | 218 Nm | 380 Nm |
| Torque RPM | 5000 RPM | 3600 RPM |
| Engine Bore Size | 88 mm | 96.5 mm |
| Engine Stroke Size | 68.3 mm | 86.4 mm |
| Drive Type | Front | Front |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1615 kg | 1347 kg |
| Vehicle Length | 4450 mm | 5040 mm |
| Vehicle Width | 1750 mm | 1830 mm |
| Vehicle Height | 1440 mm | 1430 mm |
| Wheelbase Size | 2600 mm | 2810 mm |
| Fuel Consumption Overall | 11.8 L/100km | 10.7 L/100km |
| Fuel Tank Capacity | 63 L | 64 L |
