2005 Pontiac Grand Am vs. 2007 Opel Astra
To start off, 2007 Opel Astra is newer by 2 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 3,392 cc (6 cylinders), 2005 Pontiac Grand Am is equipped with a bigger engine. In terms of performance, 2005 Pontiac Grand Am (175 HP @ 5200 RPM) has 86 more horse power than 2007 Opel Astra. (89 HP @ 5600 RPM). In normal driving conditions, 2005 Pontiac Grand Am should accelerate faster than 2007 Opel Astra. With that said, vehicle weight also plays an important factor in acceleration. 2005 Pontiac Grand Am weights approximately 172 kg more than 2007 Opel Astra. 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 Am (285 Nm) has 160 more torque (in Nm) than 2007 Opel Astra. (125 Nm). This means 2005 Pontiac Grand Am will have an easier job in driving up hills or pulling heavy equipment than 2007 Opel Astra.
Compare all specifications:
| 2005 Pontiac Grand Am | 2007 Opel Astra | |
| Make | Pontiac | Opel |
| Model | Grand Am | Astra |
| Year Released | 2005 | 2007 |
| Engine Position | Front | Front |
| Engine Size | 3392 cc | 1364 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 175 HP | 89 HP |
| Engine RPM | 5200 RPM | 5600 RPM |
| Torque | 285 Nm | 125 Nm |
| Engine Compression Ratio | 9.5:1 | 10.5:1 |
| Drive Type | Front | Front |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1402 kg | 1230 kg |
| Vehicle Length | 4740 mm | 4260 mm |
| Vehicle Width | 1790 mm | 1760 mm |
| Vehicle Height | 1410 mm | 1470 mm |
| Wheelbase Size | 2810 mm | 2620 mm |
| Fuel Consumption Overall | 10.2 L/100km | 6.3 L/100km |
| Fuel Tank Capacity | 53 L | 52 L |
