2007 Audi A4 vs. 2005 Ford Shelby GR-1 Concept
To start off, 2007 Audi A4 is newer by 2 year(s). Which means there will be less support and parts availability for 2005 Ford Shelby GR-1 Concept. In addition, the cost of maintenance, including insurance, on 2005 Ford Shelby GR-1 Concept 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 405 more horse power than 2007 Audi A4. (200 HP @ 5100 RPM) In normal driving conditions, 2005 Ford Shelby GR-1 Concept should accelerate faster than 2007 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2007 Audi A4 weights approximately 111 kg more than 2005 Ford Shelby GR-1 Concept.
Because 2007 Audi A4 is four wheel drive (4WD), it will have significant more traction and grip than 2005 Ford Shelby GR-1 Concept. In wet, icy, snow, or gravel driving conditions, 2007 Audi A4 will offer significantly more control. 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 398 more torque (in Nm) than 2007 Audi A4. (281 Nm @ 1800 RPM). This means 2005 Ford Shelby GR-1 Concept will have an easier job in driving up hills or pulling heavy equipment than 2007 Audi A4. 2007 Audi A4 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. 2007 Audi A4 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2007 Audi A4 | 2005 Ford Shelby GR-1 Concept | |
| Make | Audi | Ford |
| Model | A4 | Shelby GR-1 Concept |
| Year Released | 2007 | 2005 |
| Body Type | Sedan | Coupe |
| Engine Position | Front | Front |
| Engine Size | 1984 cc | 6392 cc |
| Engine Cylinders | 4 cylinders | 10 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 200 HP | 605 HP |
| Engine RPM | 5100 RPM | 6750 RPM |
| Torque | 281 Nm | 679 Nm |
| Torque RPM | 1800 RPM | 5500 RPM |
| Engine Bore Size | 82.6 mm | 93.1 mm |
| Engine Stroke Size | 92.8 mm | 94 mm |
| Fuel Type | Diesel | Gasoline |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1880 kg | 1769 kg |
| Vehicle Length | 4590 mm | 4420 mm |
| Vehicle Width | 1780 mm | 1900 mm |
| Vehicle Height | 1430 mm | 1170 mm |
| Wheelbase Size | 2660 mm | 2550 mm |
| Fuel Tank Capacity | 63 L | 132 L |
