2005 Audi S4 vs. 1981 Ferrari 400
To start off, 2005 Audi S4 is newer by 24 year(s). Which means there will be less support and parts availability for 1981 Ferrari 400. In addition, the cost of maintenance, including insurance, on 1981 Ferrari 400 would be higher. At 4,823 cc (12 cylinders), 1981 Ferrari 400 is equipped with a bigger engine. In terms of performance, 2005 Audi S4 (340 HP @ 4000 RPM) has 34 more horse power than 1981 Ferrari 400. (306 HP @ 6500 RPM). In normal driving conditions, 2005 Audi S4 should accelerate faster than 1981 Ferrari 400. With that said, vehicle weight also plays an important factor in acceleration. 1981 Ferrari 400 weights approximately 60 kg more than 2005 Audi S4.
Let's talk about torque, 2005 Audi S4 (410 Nm) has 18 more torque (in Nm) than 1981 Ferrari 400. (392 Nm). This means 2005 Audi S4 will have an easier job in driving up hills or pulling heavy equipment than 1981 Ferrari 400.
Compare all specifications:
| 2005 Audi S4 | 1981 Ferrari 400 | |
| Make | Audi | Ferrari |
| Model | S4 | 400 |
| Year Released | 2005 | 1981 |
| Body Type | Sedan | Coupe |
| Engine Position | Front | Front |
| Engine Size | 4163 cc | 4823 cc |
| Engine Cylinders | 8 cylinders | 12 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 5 valves | 2 valves |
| Horse Power | 340 HP | 306 HP |
| Engine RPM | 4000 RPM | 6500 RPM |
| Torque | 410 Nm | 392 Nm |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1770 kg | 1830 kg |
| Vehicle Length | 4550 mm | 4810 mm |
| Vehicle Width | 1770 mm | 1800 mm |
| Vehicle Height | 1430 mm | 1320 mm |
| Wheelbase Size | 2770 mm | 2710 mm |
| Fuel Tank Capacity | 66 L | 118 L |
