1981 Alfa Romeo Alfa 6 vs. 1991 Audi 100
To start off, 1991 Audi 100 is newer by 10 year(s). Which means there will be less support and parts availability for 1981 Alfa Romeo Alfa 6. In addition, the cost of maintenance, including insurance, on 1981 Alfa Romeo Alfa 6 would be higher. At 2,771 cc (6 cylinders), 1991 Audi 100 is equipped with a bigger engine. In terms of performance, 1991 Audi 100 (172 HP @ 5500 RPM) has 39 more horse power than 1981 Alfa Romeo Alfa 6. (133 HP @ 5600 RPM) In normal driving conditions, 1991 Audi 100 should accelerate faster than 1981 Alfa Romeo Alfa 6. With that said, vehicle weight also plays an important factor in acceleration. 1991 Audi 100 weights approximately 36 kg more than 1981 Alfa Romeo Alfa 6. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 1991 Audi 100 (250 Nm @ 3000 RPM) has 72 more torque (in Nm) than 1981 Alfa Romeo Alfa 6. (178 Nm @ 4500 RPM). This means 1991 Audi 100 will have an easier job in driving up hills or pulling heavy equipment than 1981 Alfa Romeo Alfa 6.
Compare all specifications:
| 1981 Alfa Romeo Alfa 6 | 1991 Audi 100 | |
| Make | Alfa Romeo | Audi |
| Model | Alfa 6 | 100 |
| Year Released | 1981 | 1991 |
| Engine Position | Front | Front |
| Engine Size | 1997 cc | 2771 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 133 HP | 172 HP |
| Engine RPM | 5600 RPM | 5500 RPM |
| Torque | 178 Nm | 250 Nm |
| Torque RPM | 4500 RPM | 3000 RPM |
| Engine Bore Size | 80 mm | 82.5 mm |
| Engine Stroke Size | 66.2 mm | 86.4 mm |
| Fuel Type | Gasoline | Gasoline |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Weight | 1470 kg | 1506 kg |
| Vehicle Length | 4770 mm | 4800 mm |
| Vehicle Width | 1690 mm | 1780 mm |
| Vehicle Height | 1430 mm | 1450 mm |
