2004 Alfa Romeo 156 vs. 1991 Audi 100
To start off, 2004 Alfa Romeo 156 is newer by 13 year(s). Which means there will be less support and parts availability for 1991 Audi 100. In addition, the cost of maintenance, including insurance, on 1991 Audi 100 would be higher. At 2,771 cc (6 cylinders), 1991 Audi 100 is equipped with a bigger engine. In terms of performance, 2004 Alfa Romeo 156 (173 HP @ 4000 RPM) has 1 more horse power than 1991 Audi 100. (172 HP @ 5500 RPM). In normal driving conditions, 2004 Alfa Romeo 156 should accelerate faster than 1991 Audi 100. With that said, vehicle weight also plays an important factor in acceleration. 1991 Audi 100 weights approximately 46 kg more than 2004 Alfa Romeo 156.
Let's talk about torque, 2004 Alfa Romeo 156 (400 Nm @ 2000 RPM) has 150 more torque (in Nm) than 1991 Audi 100. (250 Nm @ 3000 RPM). This means 2004 Alfa Romeo 156 will have an easier job in driving up hills or pulling heavy equipment than 1991 Audi 100.
Compare all specifications:
| 2004 Alfa Romeo 156 | 1991 Audi 100 | |
| Make | Alfa Romeo | Audi |
| Model | 156 | 100 |
| Year Released | 2004 | 1991 |
| Engine Position | Front | Front |
| Engine Size | 2492 cc | 2771 cc |
| Engine Cylinders | 5 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 173 HP | 172 HP |
| Engine RPM | 4000 RPM | 5500 RPM |
| Torque | 400 Nm | 250 Nm |
| Torque RPM | 2000 RPM | 3000 RPM |
| Engine Bore Size | 82 mm | 82.5 mm |
| Engine Stroke Size | 90.4 mm | 86.4 mm |
| Fuel Type | Diesel | Gasoline |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Weight | 1460 kg | 1506 kg |
| Vehicle Length | 4440 mm | 4800 mm |
| Vehicle Width | 1750 mm | 1780 mm |
| Vehicle Height | 1400 mm | 1450 mm |
