2003 Audi A8 vs. 2005 Ford Shelby GR-1 Concept
To start off, 2005 Ford Shelby GR-1 Concept is newer by 2 year(s). Which means there will be less support and parts availability for 2003 Audi A8. In addition, the cost of maintenance, including insurance, on 2003 Audi A8 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 388 more horse power than 2003 Audi A8. (217 HP @ 6300 RPM) In normal driving conditions, 2005 Ford Shelby GR-1 Concept should accelerate faster than 2003 Audi A8. With that said, vehicle weight also plays an important factor in acceleration. 2005 Ford Shelby GR-1 Concept weights approximately 99 kg more than 2003 Audi A8. 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, 2003 Audi A8, 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 379 more torque (in Nm) than 2003 Audi A8. (300 Nm @ 8200 RPM). This means 2005 Ford Shelby GR-1 Concept will have an easier job in driving up hills or pulling heavy equipment than 2003 Audi A8.
Compare all specifications:
| 2003 Audi A8 | 2005 Ford Shelby GR-1 Concept | |
| Make | Audi | Ford |
| Model | A8 | Shelby GR-1 Concept |
| Year Released | 2003 | 2005 |
| Body Type | Sedan | Coupe |
| Engine Position | Front | Front |
| Engine Size | 2976 cc | 6392 cc |
| Engine Cylinders | 6 cylinders | 10 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 217 HP | 605 HP |
| Engine RPM | 6300 RPM | 6750 RPM |
| Torque | 300 Nm | 679 Nm |
| Torque RPM | 8200 RPM | 5500 RPM |
| Engine Compression Ratio | 11.0:1 | 10.8:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | Front | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1670 kg | 1769 kg |
| Vehicle Length | 5060 mm | 4420 mm |
| Vehicle Width | 1900 mm | 1900 mm |
| Vehicle Height | 1450 mm | 1170 mm |
| Wheelbase Size | 2950 mm | 2550 mm |
| Fuel Tank Capacity | 70 L | 132 L |
