2005 Ford Shelby GR-1 Concept vs. 1984 Ford Sierra
To start off, 2005 Ford Shelby GR-1 Concept is newer by 21 year(s). Which means there will be less support and parts availability for 1984 Ford Sierra. In addition, the cost of maintenance, including insurance, on 1984 Ford Sierra 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 445 more horse power than 1984 Ford Sierra. (160 HP @ 5700 RPM). In normal driving conditions, 2005 Ford Shelby GR-1 Concept should accelerate faster than 1984 Ford Sierra. With that said, vehicle weight also plays an important factor in acceleration. 2005 Ford Shelby GR-1 Concept weights approximately 589 kg more than 1984 Ford Sierra. 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, 2005 Ford Shelby GR-1 Concept (679 Nm @ 5500 RPM) has 463 more torque (in Nm) than 1984 Ford Sierra. (216 Nm @ 4300 RPM). This means 2005 Ford Shelby GR-1 Concept will have an easier job in driving up hills or pulling heavy equipment than 1984 Ford Sierra.
Compare all specifications:
| 2005 Ford Shelby GR-1 Concept | 1984 Ford Sierra | |
| Make | Ford | Ford |
| Model | Shelby GR-1 Concept | Sierra |
| Year Released | 2005 | 1984 |
| Engine Position | Front | Front |
| Engine Size | 6392 cc | 2792 cc |
| Engine Cylinders | 10 cylinders | 6 cylinders |
| Engine Type | V | V |
| Horse Power | 605 HP | 160 HP |
| Engine RPM | 6750 RPM | 5700 RPM |
| Torque | 679 Nm | 216 Nm |
| Torque RPM | 5500 RPM | 4300 RPM |
| Engine Bore Size | 93.1 mm | 93.1 mm |
| Engine Stroke Size | 94 mm | 68.5 mm |
| Engine Compression Ratio | 10.8:1 | 9.2:1 |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 2 seats | 5 seats |
| Vehicle Weight | 1769 kg | 1180 kg |
| Vehicle Length | 4420 mm | 4430 mm |
| Vehicle Width | 1900 mm | 1730 mm |
| Vehicle Height | 1170 mm | 1370 mm |
| Wheelbase Size | 2550 mm | 2610 mm |
