1991 Audi Coupe vs. 2005 Audi S6
To start off, 2005 Audi S6 is newer by 14 year(s). Which means there will be less support and parts availability for 1991 Audi Coupe. In addition, the cost of maintenance, including insurance, on 1991 Audi Coupe would be higher. At 4,172 cc (8 cylinders), 2005 Audi S6 is equipped with a bigger engine. In terms of performance, 2005 Audi S6 (335 HP @ 7000 RPM) has 161 more horse power than 1991 Audi Coupe. (174 HP @ 5500 RPM) In normal driving conditions, 2005 Audi S6 should accelerate faster than 1991 Audi Coupe. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi S6 weights approximately 586 kg more than 1991 Audi Coupe. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are four wheel drive (4WD) - it offers better handling, traction, and control in all driving conditions compared with front wheel drive or rear wheel drive vehicles. 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 Audi S6 (420 Nm @ 3400 RPM) has 171 more torque (in Nm) than 1991 Audi Coupe. (249 Nm @ 3000 RPM). This means 2005 Audi S6 will have an easier job in driving up hills or pulling heavy equipment than 1991 Audi Coupe.
Compare all specifications:
| 1991 Audi Coupe | 2005 Audi S6 | |
| Make | Audi | Audi |
| Model | Coupe | S6 |
| Year Released | 1991 | 2005 |
| Body Type | Coupe | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2770 cc | 4172 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | V |
| Horse Power | 174 HP | 335 HP |
| Engine RPM | 5500 RPM | 7000 RPM |
| Torque | 249 Nm | 420 Nm |
| Torque RPM | 3000 RPM | 3400 RPM |
| Engine Bore Size | 82.5 mm | 84.5 mm |
| Engine Stroke Size | 86.4 mm | 93 mm |
| Engine Compression Ratio | 10.0:1 | 11.0:1 |
| Top Speed | 206 km/hour | 250 km/hour |
| Drive Type | 4WD | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 3 doors | 4 doors |
| Vehicle Weight | 1174 kg | 1760 kg |
| Wheelbase Size | 2560 mm | 2770 mm |
| Fuel Tank Capacity | 80 L | 82 L |
