2005 Pontiac Grand Am vs. 2011 BMW 550
To start off, 2011 BMW 550 is newer by 6 year(s). Which means there will be less support and parts availability for 2005 Pontiac Grand Am. In addition, the cost of maintenance, including insurance, on 2005 Pontiac Grand Am would be higher. At 4,400 cc (8 cylinders), 2011 BMW 550 is equipped with a bigger engine. In terms of performance, 2011 BMW 550 (400 HP @ 5500 RPM) has 225 more horse power than 2005 Pontiac Grand Am. (175 HP @ 5200 RPM) In normal driving conditions, 2011 BMW 550 should accelerate faster than 2005 Pontiac Grand Am. With that said, vehicle weight also plays an important factor in acceleration. 2011 BMW 550 weights approximately 648 kg more than 2005 Pontiac Grand Am. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2011 BMW 550 is all wheel drive (AWD), it will have significant more traction and grip than 2005 Pontiac Grand Am. In wet, icy, snow, or gravel driving conditions, 2011 BMW 550 will offer significantly more control. 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, 2011 BMW 550 (609 Nm) has 324 more torque (in Nm) than 2005 Pontiac Grand Am. (285 Nm). This means 2011 BMW 550 will have an easier job in driving up hills or pulling heavy equipment than 2005 Pontiac Grand Am.
Compare all specifications:
| 2005 Pontiac Grand Am | 2011 BMW 550 | |
| Make | Pontiac | BMW |
| Model | Grand Am | 550 |
| Year Released | 2005 | 2011 |
| Body Type | Coupe | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3392 cc | 4400 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 175 HP | 400 HP |
| Engine RPM | 5200 RPM | 5500 RPM |
| Torque | 285 Nm | 609 Nm |
| Drive Type | Front | AWD |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1402 kg | 2050 kg |
| Vehicle Length | 4740 mm | 4905 mm |
| Vehicle Width | 1790 mm | 1859 mm |
| Vehicle Height | 1410 mm | 1463 mm |
| Wheelbase Size | 2810 mm | 2969 mm |
| Fuel Consumption | 8.1 L/100km | 9.8 L/100km |
| Fuel Consumption City | 11.8 L/100km | 14.7 L/100km |
| Fuel Tank Capacity | 53 L | 70 L |
