1991 Ford Mustang vs. 2004 Audi A6
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 2,393 cc (6 cylinders), 2004 Audi A6 is equipped with a bigger engine. In terms of performance, 2004 Audi A6 (178 HP @ 4000 RPM) has 72 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 470 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 (370 Nm @ 1500 RPM) has 187 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:
| 1991 Ford Mustang | 2004 Audi A6 | |
| Make | Ford | Audi |
| Model | Mustang | A6 |
| Year Released | 1991 | 2004 |
| Body Type | Coupe | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 2301 cc | 2393 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 106 HP | 178 HP |
| Engine RPM | 4600 RPM | 4000 RPM |
| Torque | 183 Nm | 370 Nm |
| Torque RPM | 2600 RPM | 1500 RPM |
| Engine Bore Size | 96 mm | 78.3 mm |
| Engine Stroke Size | 79.5 mm | 86.4 mm |
| Engine Compression Ratio | 9.5:1 | 19.0:1 |
| Fuel Type | Gasoline | Diesel |
| Drive Type | Rear | 4WD |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1260 kg | 1730 kg |
| Vehicle Length | 4560 mm | 4800 mm |
| Vehicle Width | 1760 mm | 1820 mm |
| Vehicle Height | 1330 mm | 1460 mm |
| Wheelbase Size | 2560 mm | 2890 mm |
| Fuel Tank Capacity | 45 L | 70 L |
