2005 Ford Shelby GR-1 Concept vs. 2005 Opel Astra
To start off, both 2005 Ford Shelby GR-1 Concept and 2005 Opel Astra were released in the same year (2005). Therefore the support and the availability on parts for both vehicles should be relatively similar. At 6,392 cc (10 cylinders), 2005 Ford Shelby GR-1 Concept is equipped with a bigger engine. In terms of performance, 2005 Ford Shelby GR-1 Concept (605 HP @ 6750 RPM) has 485 more horse power than 2005 Opel Astra. (120 HP @ 4000 RPM). In normal driving conditions, 2005 Ford Shelby GR-1 Concept should accelerate faster than 2005 Opel Astra. With that said, vehicle weight also plays an important factor in acceleration. 2005 Ford Shelby GR-1 Concept weights approximately 534 kg more than 2005 Opel Astra. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2005 Ford Shelby GR-1 Concept is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 2005 Ford Shelby GR-1 Concept. However, in wet, icy, snow, or gravel driving conditions, 2005 Opel Astra, being front wheel drive (FWD), will offer much better control with better grip. 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 Ford Shelby GR-1 Concept (679 Nm @ 5500 RPM) has 509 more torque (in Nm) than 2005 Opel Astra. (170 Nm @ 3800 RPM). This means 2005 Ford Shelby GR-1 Concept will have an easier job in driving up hills or pulling heavy equipment than 2005 Opel Astra.
Compare all specifications:
| 2005 Ford Shelby GR-1 Concept | 2005 Opel Astra | |
| Make | Ford | Opel |
| Model | Shelby GR-1 Concept | Astra |
| Year Released | 2005 | 2005 |
| Body Type | Coupe | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 6392 cc | 1795 cc |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 605 HP | 120 HP |
| Engine RPM | 6750 RPM | 4000 RPM |
| Torque | 679 Nm | 170 Nm |
| Torque RPM | 5500 RPM | 3800 RPM |
| Engine Bore Size | 93.1 mm | 80.5 mm |
| Engine Stroke Size | 94 mm | 88.2 mm |
| Engine Compression Ratio | 10.8:1 | 10.5:1 |
| Drive Type | Rear | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1769 kg | 1235 kg |
| Vehicle Length | 4420 mm | 4520 mm |
| Wheelbase Size | 2550 mm | 2740 mm |
| Fuel Tank Capacity | 132 L | 52 L |
