1979 BMW 728 vs. 2006 Mercury Mariner
To start off, 2006 Mercury Mariner is newer by 27 year(s). Which means there will be less support and parts availability for 1979 BMW 728. In addition, the cost of maintenance, including insurance, on 1979 BMW 728 would be higher. At 2,999 cc (6 cylinders), 2006 Mercury Mariner is equipped with a bigger engine. In terms of performance, 2006 Mercury Mariner (200 HP @ 6000 RPM) has 19 more horse power than 1979 BMW 728. (181 HP @ 5800 RPM) In normal driving conditions, 2006 Mercury Mariner should accelerate faster than 1979 BMW 728. With that said, vehicle weight also plays an important factor in acceleration. 2006 Mercury Mariner weights approximately 101 kg more than 1979 BMW 728. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2006 Mercury Mariner is four wheel drive (4WD), it will have significant more traction and grip than 1979 BMW 728. 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, 2006 Mercury Mariner (262 Nm @ 4850 RPM) has 22 more torque (in Nm) than 1979 BMW 728. (240 Nm @ 4200 RPM). This means 2006 Mercury Mariner will have an easier job in driving up hills or pulling heavy equipment than 1979 BMW 728.
Compare all specifications:
| 1979 BMW 728 | 2006 Mercury Mariner | |
| Make | BMW | Mercury |
| Model | 728 | Mariner |
| Year Released | 1979 | 2006 |
| Body Type | Sedan | SUV |
| Engine Position | Front | Front |
| Engine Size | 2788 cc | 2999 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Horse Power | 181 HP | 200 HP |
| Engine RPM | 5800 RPM | 6000 RPM |
| Torque | 240 Nm | 262 Nm |
| Torque RPM | 4200 RPM | 4850 RPM |
| Engine Compression Ratio | 9.3:1 | 9.4:1 |
| Drive Type | Rear | 4WD |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1470 kg | 1571 kg |
| Vehicle Length | 4870 mm | 4450 mm |
| Vehicle Width | 1810 mm | 1790 mm |
| Vehicle Height | 1440 mm | 1780 mm |
| Wheelbase Size | 2800 mm | 2630 mm |
| Fuel Tank Capacity | 100 L | 62 L |
