2005 Opel Speedster vs. 2007 Pontiac Grand Prix
To start off, 2007 Pontiac Grand Prix is newer by 2 year(s). Which means there will be less support and parts availability for 2005 Opel Speedster. In addition, the cost of maintenance, including insurance, on 2005 Opel Speedster would be higher. At 3,786 cc (6 cylinders), 2007 Pontiac Grand Prix is equipped with a bigger engine. In terms of performance, 2007 Pontiac Grand Prix (200 HP) has 3 more horse power than 2005 Opel Speedster. (197 HP) In normal driving conditions, 2007 Pontiac Grand Prix should accelerate faster than 2005 Opel Speedster. With that said, vehicle weight also plays an important factor in acceleration. 2007 Pontiac Grand Prix weights approximately 351 kg more than 2005 Opel Speedster. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are rear wheel drive (RWD) - it offers better handling in dry conditions; in addition, if you are looking to drift, both vehicles do the job better than front 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 (312 Nm @ 4000 RPM) has 61 more torque (in Nm) than 2005 Opel Speedster. (251 Nm @ 1950 RPM). This means 2007 Pontiac Grand Prix will have an easier job in driving up hills or pulling heavy equipment than 2005 Opel Speedster. 2007 Pontiac Grand Prix has automatic transmission and 2005 Opel Speedster has manual transmission. 2005 Opel Speedster 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:
| 2005 Opel Speedster | 2007 Pontiac Grand Prix | |
| Make | Opel | Pontiac |
| Model | Speedster | Grand Prix |
| Year Released | 2005 | 2007 |
| Body Type | Convertible | Sedan |
| Engine Position | Middle | Front |
| Engine Size | 1998 cc | 3786 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 197 HP | 200 HP |
| Torque | 251 Nm | 312 Nm |
| Torque RPM | 1950 RPM | 4000 RPM |
| Engine Bore Size | 86 mm | 97 mm |
| Engine Stroke Size | 86 mm | 86 mm |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1005 kg | 1356 kg |
| Vehicle Length | 3790 mm | 5040 mm |
| Vehicle Width | 1710 mm | 1830 mm |
| Vehicle Height | 1120 mm | 1430 mm |
| Wheelbase Size | 2340 mm | 2810 mm |
| Fuel Consumption Overall | 8.5 L/100km | 9.8 L/100km |
| Fuel Tank Capacity | 36 L | 64 L |
