2005 Ford Shelby GR-1 Concept vs. 2002 Opel Signum
To start off, 2005 Ford Shelby GR-1 Concept is newer by 3 year(s). Which means there will be less support and parts availability for 2002 Opel Signum. In addition, the cost of maintenance, including insurance, on 2002 Opel Signum would be higher. 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 452 more horse power than 2002 Opel Signum. (153 HP @ 5600 RPM). In normal driving conditions, 2005 Ford Shelby GR-1 Concept should accelerate faster than 2002 Opel Signum. With that said, vehicle weight also plays an important factor in acceleration. 2005 Ford Shelby GR-1 Concept weights approximately 284 kg more than 2002 Opel Signum. 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, 2002 Opel Signum, 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 429 more torque (in Nm) than 2002 Opel Signum. (250 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 2002 Opel Signum. 2002 Opel Signum has automatic transmission and 2005 Ford Shelby GR-1 Concept has manual transmission. 2005 Ford Shelby GR-1 Concept will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2002 Opel Signum will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2005 Ford Shelby GR-1 Concept | 2002 Opel Signum | |
| Make | Ford | Opel |
| Model | Shelby GR-1 Concept | Signum |
| Year Released | 2005 | 2002 |
| Body Type | Coupe | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 6392 cc | 2172 cc |
| Engine Cylinders | 10 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 605 HP | 153 HP |
| Engine RPM | 6750 RPM | 5600 RPM |
| Torque | 679 Nm | 250 Nm |
| Torque RPM | 5500 RPM | 3800 RPM |
| Engine Compression Ratio | 10.8:1 | 12.0:1 |
| Drive Type | Rear | Front |
| Transmission Type | Manual | Automatic |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1769 kg | 1485 kg |
| Vehicle Length | 4420 mm | 4640 mm |
| Vehicle Width | 1900 mm | 1800 mm |
| Vehicle Height | 1170 mm | 1470 mm |
| Wheelbase Size | 2550 mm | 2710 mm |
| Fuel Tank Capacity | 132 L | 60 L |
