2005 Ford Shelby GR-1 Concept vs. 1978 Porsche 911
To start off, 2005 Ford Shelby GR-1 Concept is newer by 27 year(s). Which means there will be less support and parts availability for 1978 Porsche 911. In addition, the cost of maintenance, including insurance, on 1978 Porsche 911 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 250 more horse power than 1978 Porsche 911. (355 HP @ 4200 RPM). In normal driving conditions, 2005 Ford Shelby GR-1 Concept should accelerate faster than 1978 Porsche 911. With that said, vehicle weight also plays an important factor in acceleration. 2005 Ford Shelby GR-1 Concept weights approximately 590 kg more than 1978 Porsche 911. 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, 1978 Porsche 911 (750 Nm @ 2000 RPM) has 71 more torque (in Nm) than 2005 Ford Shelby GR-1 Concept. (679 Nm @ 5500 RPM). This means 1978 Porsche 911 will have an easier job in driving up hills or pulling heavy equipment than 2005 Ford Shelby GR-1 Concept.
Compare all specifications:
| 2005 Ford Shelby GR-1 Concept | 1978 Porsche 911 | |
| Make | Ford | Porsche |
| Model | Shelby GR-1 Concept | 911 |
| Year Released | 2005 | 1978 |
| Body Type | Coupe | Coupe |
| Engine Position | Front | Rear |
| Engine Size | 6392 cc | 2992 cc |
| Engine Cylinders | 10 cylinders | 6 cylinders |
| Engine Type | V | boxer |
| Horse Power | 605 HP | 355 HP |
| Engine RPM | 6750 RPM | 4200 RPM |
| Torque | 679 Nm | 750 Nm |
| Torque RPM | 5500 RPM | 2000 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Number of Seats | 2 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1769 kg | 1179 kg |
| Vehicle Length | 4420 mm | 4300 mm |
| Vehicle Width | 1900 mm | 1660 mm |
| Vehicle Height | 1170 mm | 1330 mm |
| Wheelbase Size | 2550 mm | 2270 mm |
| Fuel Tank Capacity | 132 L | 80 L |
