1991 Alfa Romeo 75 vs. 2005 Audi S4
To start off, 2005 Audi S4 is newer by 14 year(s). Which means there will be less support and parts availability for 1991 Alfa Romeo 75. In addition, the cost of maintenance, including insurance, on 1991 Alfa Romeo 75 would be higher. At 4,163 cc (8 cylinders), 2005 Audi S4 is equipped with a bigger engine. In terms of performance, 2005 Audi S4 (340 HP @ 6300 RPM) has 231 more horse power than 1991 Alfa Romeo 75. (109 HP @ 6000 RPM) In normal driving conditions, 2005 Audi S4 should accelerate faster than 1991 Alfa Romeo 75. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi S4 weights approximately 675 kg more than 1991 Alfa Romeo 75. 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 261 more torque (in Nm) than 1991 Alfa Romeo 75. (149 Nm). This means 2005 Audi S4 will have an easier job in driving up hills or pulling heavy equipment than 1991 Alfa Romeo 75.
Compare all specifications:
| 1991 Alfa Romeo 75 | 2005 Audi S4 | |
| Make | Alfa Romeo | Audi |
| Model | 75 | S4 |
| Year Released | 1991 | 2005 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 1567 cc | 4163 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 2 valves | 5 valves |
| Horse Power | 109 HP | 340 HP |
| Engine RPM | 6000 RPM | 6300 RPM |
| Torque | 149 Nm | 410 Nm |
| Engine Bore Size | 78 mm | 85.1 mm |
| Engine Stroke Size | 82 mm | 93 mm |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1060 kg | 1735 kg |
| Vehicle Length | 4340 mm | 4550 mm |
| Vehicle Width | 1670 mm | 1770 mm |
| Vehicle Height | 1410 mm | 1430 mm |
| Wheelbase Size | 2520 mm | 2660 mm |
| Fuel Tank Capacity | 49 L | 63 L |
