1978 BMW 520 vs. 2005 Mercury Sable
To start off, 2005 Mercury Sable is newer by 27 year(s). Which means there will be less support and parts availability for 1978 BMW 520. In addition, the cost of maintenance, including insurance, on 1978 BMW 520 would be higher. At 2,983 cc (6 cylinders), 2005 Mercury Sable is equipped with a bigger engine. In terms of performance, 2005 Mercury Sable (153 HP) has 18 more horse power than 1978 BMW 520. (135 HP) In normal driving conditions, 2005 Mercury Sable should accelerate faster than 1978 BMW 520. With that said, vehicle weight also plays an important factor in acceleration. 1978 BMW 520 weights approximately 157 kg more than 2005 Mercury Sable.
Let's talk about torque, 1978 BMW 520 (280 Nm) has 28 more torque (in Nm) than 2005 Mercury Sable. (252 Nm). This means 1978 BMW 520 will have an easier job in driving up hills or pulling heavy equipment than 2005 Mercury Sable.
Compare all specifications:
| 1978 BMW 520 | 2005 Mercury Sable | |
| Make | BMW | Mercury |
| Model | 520 | Sable |
| Year Released | 1978 | 2005 |
| Body Type | Station Wagon | Sedan |
| Engine Position | Front | Front |
| Engine Size | 1951 cc | 2983 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 135 HP | 153 HP |
| Torque | 280 Nm | 252 Nm |
| Engine Compression Ratio | 19.0:1 | 9.7:1 |
| Number of Seats | 5 seats | 6 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1670 kg | 1513 kg |
| Vehicle Length | 4810 mm | 5080 mm |
| Vehicle Width | 1810 mm | 1860 mm |
| Vehicle Height | 1450 mm | 1420 mm |
| Wheelbase Size | 2770 mm | 2760 mm |
| Fuel Consumption | 5 L/100km | 8.7 L/100km |
| Fuel Consumption City | 8.1 L/100km | 11.8 L/100km |
| Fuel Consumption Overall | 6.1 L/100km | 10.2 L/100km |
| Fuel Tank Capacity | 70 L | 68 L |
