1972 BMW 520 vs. 2006 Mercury Mariner
To start off, 2006 Mercury Mariner is newer by 34 year(s). Which means there will be less support and parts availability for 1972 BMW 520. In addition, the cost of maintenance, including insurance, on 1972 BMW 520 would be higher. At 2,262 cc (4 cylinders), 2006 Mercury Mariner is equipped with a bigger engine. In terms of performance, 1972 BMW 520 (150 HP @ 5900 RPM) has 17 more horse power than 2006 Mercury Mariner. (133 HP @ 5000 RPM). In normal driving conditions, 1972 BMW 520 should accelerate faster than 2006 Mercury Mariner. With that said, vehicle weight also plays an important factor in acceleration. 2006 Mercury Mariner weights approximately 480 kg more than 1972 BMW 520.
Because 2006 Mercury Mariner is four wheel drive (4WD), it will have significant more traction and grip than 1972 BMW 520. In wet, icy, snow, or gravel driving conditions, 2006 Mercury Mariner will offer significantly more control. With that said, do keep in mind that many other factors such as speed and the wear on your tires can also have significant impact on traction and control. Let's talk about torque, 1972 BMW 520 (190 Nm @ 4200 RPM) has 22 more torque (in Nm) than 2006 Mercury Mariner. (168 Nm @ 4250 RPM). This means 1972 BMW 520 will have an easier job in driving up hills or pulling heavy equipment than 2006 Mercury Mariner.
Compare all specifications:
| 1972 BMW 520 | 2006 Mercury Mariner | |
| Make | BMW | Mercury |
| Model | 520 | Mariner |
| Year Released | 1972 | 2006 |
| Body Type | Sedan | SUV |
| Engine Position | Front | Front |
| Engine Size | 1991 cc | 2262 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 150 HP | 133 HP |
| Engine RPM | 5900 RPM | 5000 RPM |
| Torque | 190 Nm | 168 Nm |
| Torque RPM | 4200 RPM | 4250 RPM |
| Drive Type | Rear | 4WD |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1445 kg | 1925 kg |
| Vehicle Length | 4630 mm | 4450 mm |
| Vehicle Width | 1700 mm | 1790 mm |
| Vehicle Height | 1430 mm | 1790 mm |
| Wheelbase Size | 2770 mm | 2630 mm |
| Fuel Consumption | 7.3 L/100km | 8.1 L/100km |
| Fuel Consumption City | 12.4 L/100km | 7.1 L/100km |
| Fuel Consumption Overall | 9.2 L/100km | 7.6 L/100km |
| Fuel Tank Capacity | 80 L | 57 L |
