2004 Audi A6 vs. 1991 Ford Mustang
To start off, 2004 Audi A6 is newer by 13 year(s). Which means there will be less support and parts availability for 1991 Ford Mustang. In addition, the cost of maintenance, including insurance, on 1991 Ford Mustang would be higher. At 2,974 cc (6 cylinders), 2004 Audi A6 is equipped with a bigger engine. In terms of performance, 2004 Audi A6 (221 HP @ 4000 RPM) has 115 more horse power than 1991 Ford Mustang. (106 HP @ 4600 RPM). In normal driving conditions, 2004 Audi A6 should accelerate faster than 1991 Ford Mustang. With that said, vehicle weight also plays an important factor in acceleration. 2004 Audi A6 weights approximately 505 kg more than 1991 Ford Mustang. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2004 Audi A6 is four wheel drive (4WD), it will have significant more traction and grip than 1991 Ford Mustang. In wet, icy, snow, or gravel driving conditions, 2004 Audi A6 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, 2004 Audi A6 (430 Nm @ 1400 RPM) has 247 more torque (in Nm) than 1991 Ford Mustang. (183 Nm @ 2600 RPM). This means 2004 Audi A6 will have an easier job in driving up hills or pulling heavy equipment than 1991 Ford Mustang.
Compare all specifications:
| 2004 Audi A6 | 1991 Ford Mustang | |
| Make | Audi | Ford |
| Model | A6 | Mustang |
| Year Released | 2004 | 1991 |
| Body Type | Sedan | Coupe |
| Engine Position | Front | Front |
| Engine Size | 2974 cc | 2301 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 221 HP | 106 HP |
| Engine RPM | 4000 RPM | 4600 RPM |
| Torque | 430 Nm | 183 Nm |
| Torque RPM | 1400 RPM | 2600 RPM |
| Engine Bore Size | 83 mm | 96 mm |
| Engine Stroke Size | 91.4 mm | 79.5 mm |
| Engine Compression Ratio | 17.0:1 | 9.5:1 |
| Fuel Type | Diesel | Gasoline |
| Drive Type | 4WD | Rear |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1765 kg | 1260 kg |
| Vehicle Length | 4920 mm | 4560 mm |
| Vehicle Width | 1860 mm | 1760 mm |
| Vehicle Height | 1460 mm | 1330 mm |
| Wheelbase Size | 2850 mm | 2560 mm |
| Fuel Tank Capacity | 80 L | 45 L |
