2005 Ford Shelby GR-1 Concept vs. 1989 Renault 21
To start off, 2005 Ford Shelby GR-1 Concept is newer by 16 year(s). Which means there will be less support and parts availability for 1989 Renault 21. In addition, the cost of maintenance, including insurance, on 1989 Renault 21 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 499 more horse power than 1989 Renault 21. (106 HP @ 4250 RPM). In normal driving conditions, 2005 Ford Shelby GR-1 Concept should accelerate faster than 1989 Renault 21. With that said, vehicle weight also plays an important factor in acceleration. 2005 Ford Shelby GR-1 Concept weights approximately 679 kg more than 1989 Renault 21. 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, 1989 Renault 21, 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) has 520 more torque (in Nm) than 1989 Renault 21. (159 Nm). This means 2005 Ford Shelby GR-1 Concept will have an easier job in driving up hills or pulling heavy equipment than 1989 Renault 21.
Compare all specifications:
| 2005 Ford Shelby GR-1 Concept | 1989 Renault 21 | |
| Make | Ford | Renault |
| Model | Shelby GR-1 Concept | 21 |
| Year Released | 2005 | 1989 |
| Engine Position | Front | Front |
| Engine Size | 6392 cc | 2067 cc |
| Engine Cylinders | 10 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 605 HP | 106 HP |
| Engine RPM | 6750 RPM | 4250 RPM |
| Torque | 679 Nm | 159 Nm |
| Engine Bore Size | 93.1 mm | 88 mm |
| Engine Stroke Size | 94 mm | 82 mm |
| 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 | 1090 kg |
| Vehicle Length | 4420 mm | 4470 mm |
| Vehicle Width | 1900 mm | 1730 mm |
| Vehicle Height | 1170 mm | 1410 mm |
| Wheelbase Size | 2550 mm | 2670 mm |
