2007 Opel Astra vs. 2003 Pontiac Aztek
To start off, 2007 Opel Astra is newer by 4 year(s). Which means there will be less support and parts availability for 2003 Pontiac Aztek. In addition, the cost of maintenance, including insurance, on 2003 Pontiac Aztek would be higher. At 3,392 cc (6 cylinders), 2003 Pontiac Aztek is equipped with a bigger engine. In terms of performance, 2003 Pontiac Aztek (176 HP @ 5200 RPM) has 53 more horse power than 2007 Opel Astra. (123 HP @ 4000 RPM) In normal driving conditions, 2003 Pontiac Aztek should accelerate faster than 2007 Opel Astra. With that said, vehicle weight also plays an important factor in acceleration. 2003 Pontiac Aztek weights approximately 435 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.
Because 2003 Pontiac Aztek is four wheel drive (4WD), it will have significant more traction and grip than 2007 Opel Astra. In wet, icy, snow, or gravel driving conditions, 2003 Pontiac Aztek 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, 2003 Pontiac Aztek (298 Nm @ 4000 RPM) has 18 more torque (in Nm) than 2007 Opel Astra. (280 Nm @ 2000 RPM). This means 2003 Pontiac Aztek will have an easier job in driving up hills or pulling heavy equipment than 2007 Opel Astra.
Compare all specifications:
| 2007 Opel Astra | 2003 Pontiac Aztek | |
| Make | Opel | Pontiac |
| Model | Astra | Aztek |
| Year Released | 2007 | 2003 |
| Body Type | Sedan | Crossover |
| Engine Position | Front | Front |
| Engine Size | 1796 cc | 3392 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 123 HP | 176 HP |
| Engine RPM | 4000 RPM | 5200 RPM |
| Torque | 280 Nm | 298 Nm |
| Torque RPM | 2000 RPM | 4000 RPM |
| Engine Compression Ratio | 17.5:1 | 8.6:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Front | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1395 kg | 1830 kg |
| Vehicle Length | 4260 mm | 4630 mm |
| Vehicle Width | 1760 mm | 1880 mm |
| Vehicle Height | 1470 mm | 1700 mm |
| Wheelbase Size | 2620 mm | 2760 mm |
| Fuel Tank Capacity | 52 L | 69 L |
