1991 Audi 100 vs. 2005 Ford Shelby GR-1 Concept
To start off, 2005 Ford Shelby GR-1 Concept is newer by 14 year(s). Which means there will be less support and parts availability for 1991 Audi 100. In addition, the cost of maintenance, including insurance, on 1991 Audi 100 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 474 more horse power than 1991 Audi 100. (131 HP @ 5500 RPM) In normal driving conditions, 2005 Ford Shelby GR-1 Concept should accelerate faster than 1991 Audi 100. With that said, vehicle weight also plays an important factor in acceleration. 2005 Ford Shelby GR-1 Concept weights approximately 359 kg more than 1991 Audi 100. 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, 1991 Audi 100, 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 493 more torque (in Nm) than 1991 Audi 100. (186 Nm @ 4000 RPM). This means 2005 Ford Shelby GR-1 Concept will have an easier job in driving up hills or pulling heavy equipment than 1991 Audi 100.
Compare all specifications:
| 1991 Audi 100 | 2005 Ford Shelby GR-1 Concept | |
| Make | Audi | Ford |
| Model | 100 | Shelby GR-1 Concept |
| Year Released | 1991 | 2005 |
| Engine Position | Front | Front |
| Engine Size | 2309 cc | 6392 cc |
| Engine Cylinders | 5 cylinders | 10 cylinders |
| Engine Type | in-line | V |
| Horse Power | 131 HP | 605 HP |
| Engine RPM | 5500 RPM | 6750 RPM |
| Torque | 186 Nm | 679 Nm |
| Torque RPM | 4000 RPM | 5500 RPM |
| Engine Bore Size | 82.5 mm | 93.1 mm |
| Engine Stroke Size | 86.4 mm | 94 mm |
| Engine Compression Ratio | 10.0:1 | 10.8:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Front | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 2 seats |
| Vehicle Weight | 1410 kg | 1769 kg |
| Vehicle Length | 4800 mm | 4420 mm |
| Vehicle Width | 1780 mm | 1900 mm |
| Vehicle Height | 1450 mm | 1170 mm |
