2005 Audi A8 vs. 1985 BMW M5
To start off, 2005 Audi A8 is newer by 20 year(s). Which means there will be less support and parts availability for 1985 BMW M5. In addition, the cost of maintenance, including insurance, on 1985 BMW M5 would be higher. At 4,178 cc (8 cylinders), 2005 Audi A8 is equipped with a bigger engine. In terms of performance, 2005 Audi A8 (335 HP @ 4000 RPM) has 79 more horse power than 1985 BMW M5. (256 HP @ 4800 RPM). In normal driving conditions, 2005 Audi A8 should accelerate faster than 1985 BMW M5. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi A8 weights approximately 445 kg more than 1985 BMW M5. 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 140 more torque (in Nm) than 1985 BMW M5. (290 Nm). This means 2005 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 1985 BMW M5.
Compare all specifications:
| 2005 Audi A8 | 1985 BMW M5 | |
| Make | Audi | BMW |
| Model | A8 | M5 |
| Year Released | 2005 | 1985 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4178 cc | 3453 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 335 HP | 256 HP |
| Engine RPM | 4000 RPM | 4800 RPM |
| Torque | 430 Nm | 290 Nm |
| Engine Bore Size | 85 mm | 91.9 mm |
| Engine Stroke Size | 93 mm | 86.1 mm |
| Engine Compression Ratio | 11.0:1 | 8.0:1 |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1945 kg | 1500 kg |
| Vehicle Length | 5060 mm | 4630 mm |
| Vehicle Width | 1900 mm | 1710 mm |
| Vehicle Height | 1450 mm | 1410 mm |
| Wheelbase Size | 2950 mm | 2580 mm |
| Fuel Consumption Highway | 9.8 L/100km | 9.7 L/100km |
| Fuel Consumption City | 13.1 L/100km | 16.5 L/100km |
| Fuel Consumption Overall | 11.8 L/100km | 8.6 L/100km |
| Fuel Tank Capacity | 90 L | 70 L |
