2005 Ford Shelby GR-1 Concept vs. 1976 Holden Sunbird
To start off, 2005 Ford Shelby GR-1 Concept is newer by 29 year(s). Which means there will be less support and parts availability for 1976 Holden Sunbird. In addition, the cost of maintenance, including insurance, on 1976 Holden Sunbird 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 504 more horse power than 1976 Holden Sunbird. (101 HP @ 5400 RPM). In normal driving conditions, 2005 Ford Shelby GR-1 Concept should accelerate faster than 1976 Holden Sunbird. With that said, vehicle weight also plays an important factor in acceleration. 2005 Ford Shelby GR-1 Concept weights approximately 649 kg more than 1976 Holden Sunbird. 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 523 more torque (in Nm) than 1976 Holden Sunbird. (156 Nm @ 2800 RPM). This means 2005 Ford Shelby GR-1 Concept will have an easier job in driving up hills or pulling heavy equipment than 1976 Holden Sunbird. 1976 Holden Sunbird 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. 1976 Holden Sunbird will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2005 Ford Shelby GR-1 Concept | 1976 Holden Sunbird | |
| Make | Ford | Holden |
| Model | Shelby GR-1 Concept | Sunbird |
| Year Released | 2005 | 1976 |
| Engine Position | Front | Front |
| Engine Size | 6392 cc | 1897 cc |
| Engine Cylinders | 10 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 605 HP | 101 HP |
| Engine RPM | 6750 RPM | 5400 RPM |
| Torque | 679 Nm | 156 Nm |
| Torque RPM | 5500 RPM | 2800 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Automatic |
| Vehicle Weight | 1769 kg | 1120 kg |
| Vehicle Length | 4420 mm | 4500 mm |
| Vehicle Width | 1900 mm | 1710 mm |
| Vehicle Height | 1170 mm | 1340 mm |
| Wheelbase Size | 2550 mm | 2590 mm |
