1991 Alfa Romeo 164 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 164. In addition, the cost of maintenance, including insurance, on 1991 Alfa Romeo 164 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 133 more horse power than 1991 Alfa Romeo 164. (207 HP @ 6000 RPM) In normal driving conditions, 2005 Audi S4 should accelerate faster than 1991 Alfa Romeo 164. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi S4 weights approximately 345 kg more than 1991 Alfa Romeo 164. 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 121 more torque (in Nm) than 1991 Alfa Romeo 164. (289 Nm). This means 2005 Audi S4 will have an easier job in driving up hills or pulling heavy equipment than 1991 Alfa Romeo 164.
Compare all specifications:
| 1991 Alfa Romeo 164 | 2005 Audi S4 | |
| Make | Alfa Romeo | Audi |
| Model | 164 | S4 |
| Year Released | 1991 | 2005 |
| Body Type | Sedan | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 1996 cc | 4172 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 2 valves | 5 valves |
| Horse Power | 207 HP | 340 HP |
| Engine RPM | 6000 RPM | 4000 RPM |
| Torque | 289 Nm | 410 Nm |
| Engine Bore Size | 80 mm | 85 mm |
| Engine Stroke Size | 66.2 mm | 93 mm |
| Engine Compression Ratio | 8.0:1 | 11.0:1 |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1440 kg | 1785 kg |
| Vehicle Length | 4560 mm | 4550 mm |
| Vehicle Width | 1770 mm | 1770 mm |
| Vehicle Height | 1410 mm | 1430 mm |
| Wheelbase Size | 2670 mm | 2470 mm |
| Fuel Tank Capacity | 70 L | 66 L |
