2005 Audi A8 vs. 1981 Ferrari 400
To start off, 2005 Audi A8 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 A8 (335 HP @ 4000 RPM) has 25 more horse power than 1981 Ferrari 400. (310 HP @ 6500 RPM). In normal driving conditions, 2005 Audi A8 should accelerate faster than 1981 Ferrari 400. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi A8 weights approximately 115 kg more than 1981 Ferrari 400. 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 A8 (430 Nm) has 38 more torque (in Nm) than 1981 Ferrari 400. (392 Nm). This means 2005 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 1981 Ferrari 400.
Compare all specifications:
| 2005 Audi A8 | 1981 Ferrari 400 | |
| Make | Audi | Ferrari |
| Model | A8 | 400 |
| Year Released | 2005 | 1981 |
| Body Type | Sedan | Convertible |
| Engine Position | Front | Front |
| Engine Size | 4178 cc | 4823 cc |
| Engine Cylinders | 8 cylinders | 12 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 5 valves | 2 valves |
| Horse Power | 335 HP | 310 HP |
| Engine RPM | 4000 RPM | 6500 RPM |
| Torque | 430 Nm | 392 Nm |
| Engine Bore Size | 85 mm | 81.1 mm |
| Engine Stroke Size | 93 mm | 78 mm |
| Engine Compression Ratio | 11.0:1 | 8.8:1 |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1945 kg | 1830 kg |
| Vehicle Length | 5060 mm | 4820 mm |
| Vehicle Width | 1900 mm | 1800 mm |
| Vehicle Height | 1450 mm | 1320 mm |
| Wheelbase Size | 2950 mm | 2710 mm |
| Fuel Tank Capacity | 90 L | 120 L |
