1975 Austin Allegro vs. 2005 Ford Shelby GR-1 Concept
To start off, 2005 Ford Shelby GR-1 Concept is newer by 30 year(s). Which means there will be less support and parts availability for 1975 Austin Allegro. In addition, the cost of maintenance, including insurance, on 1975 Austin Allegro 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 561 more horse power than 1975 Austin Allegro. (44 HP @ 5250 RPM) In normal driving conditions, 2005 Ford Shelby GR-1 Concept should accelerate faster than 1975 Austin Allegro. With that said, vehicle weight also plays an important factor in acceleration. 2005 Ford Shelby GR-1 Concept weights approximately 954 kg more than 1975 Austin Allegro. 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, 1975 Austin Allegro, 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 605 more torque (in Nm) than 1975 Austin Allegro. (74 Nm @ 2900 RPM). This means 2005 Ford Shelby GR-1 Concept will have an easier job in driving up hills or pulling heavy equipment than 1975 Austin Allegro.
Compare all specifications:
| 1975 Austin Allegro | 2005 Ford Shelby GR-1 Concept | |
| Make | Austin | Ford |
| Model | Allegro | Shelby GR-1 Concept |
| Year Released | 1975 | 2005 |
| Engine Position | Front | Front |
| Engine Size | 1098 cc | 6392 cc |
| Engine Cylinders | 4 cylinders | 10 cylinders |
| Engine Type | in-line | V |
| Horse Power | 44 HP | 605 HP |
| Engine RPM | 5250 RPM | 6750 RPM |
| Torque | 74 Nm | 679 Nm |
| Torque RPM | 2900 RPM | 5500 RPM |
| Engine Bore Size | 64.6 mm | 93.1 mm |
| Engine Stroke Size | 83.7 mm | 94 mm |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Front | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 815 kg | 1769 kg |
| Vehicle Length | 3200 mm | 4420 mm |
| Vehicle Width | 1620 mm | 1900 mm |
| Vehicle Height | 1400 mm | 1170 mm |
| Wheelbase Size | 2450 mm | 2550 mm |
| Fuel Tank Capacity | 48 L | 132 L |
