2005 Audi S4 vs. 1991 Audi Coupe
To start off, 2005 Audi S4 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 S4 is equipped with a bigger engine. In terms of performance, 2005 Audi S4 (340 HP @ 4000 RPM) has 229 more horse power than 1991 Audi Coupe. (111 HP @ 5300 RPM). In normal driving conditions, 2005 Audi S4 should accelerate faster than 1991 Audi Coupe. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi S4 weights approximately 655 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.
Let's talk about torque, 2005 Audi S4 (410 Nm) has 242 more torque (in Nm) than 1991 Audi Coupe. (168 Nm). This means 2005 Audi S4 will have an easier job in driving up hills or pulling heavy equipment than 1991 Audi Coupe.
Compare all specifications:
| 2005 Audi S4 | 1991 Audi Coupe | |
| Make | Audi | Audi |
| Model | S4 | Coupe |
| Year Released | 2005 | 1991 |
| Body Type | Station Wagon | Coupe |
| Engine Position | Front | Front |
| Engine Size | 4172 cc | 1982 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 340 HP | 111 HP |
| Engine RPM | 4000 RPM | 5300 RPM |
| Torque | 410 Nm | 168 Nm |
| Engine Bore Size | 85 mm | 82.5 mm |
| Engine Stroke Size | 93 mm | 92.8 mm |
| Engine Compression Ratio | 11.0:1 | 10.5:1 |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 1785 kg | 1130 kg |
| Vehicle Length | 4550 mm | 4490 mm |
| Vehicle Width | 1770 mm | 1720 mm |
| Vehicle Height | 1430 mm | 1380 mm |
| Wheelbase Size | 2470 mm | 2560 mm |
| Fuel Tank Capacity | 66 L | 64 L |
