1972 Plymouth Valiant vs. 2013 BMW 6 series
To start off, 2013 BMW 6 series is newer by 41 year(s). Which means there will be less support and parts availability for 1972 Plymouth Valiant. In addition, the cost of maintenance, including insurance, on 1972 Plymouth Valiant would be higher. At 4,395 cc (8 cylinders), 2013 BMW 6 series is equipped with a bigger engine. In terms of performance, 2013 BMW 6 series (437 HP @ 5500 RPM) has 328 more horse power than 1972 Plymouth Valiant. (109 HP @ 4000 RPM) In normal driving conditions, 2013 BMW 6 series should accelerate faster than 1972 Plymouth Valiant. With that said, vehicle weight also plays an important factor in acceleration. 2013 BMW 6 series weights approximately 779 kg more than 1972 Plymouth Valiant. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2013 BMW 6 series is all wheel drive (AWD), it will have significant more traction and grip than 1972 Plymouth Valiant. In wet, icy, snow, or gravel driving conditions, 2013 BMW 6 series 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, 2013 BMW 6 series (649 Nm @ 4500 RPM) has 398 more torque (in Nm) than 1972 Plymouth Valiant. (251 Nm @ 2000 RPM). This means 2013 BMW 6 series will have an easier job in driving up hills or pulling heavy equipment than 1972 Plymouth Valiant.
Compare all specifications:
| 1972 Plymouth Valiant | 2013 BMW 6 series | |
| Make | Plymouth | BMW |
| Model | Valiant | 6 series |
| Year Released | 1972 | 2013 |
| Engine Position | Front | Front |
| Engine Size | 3678 cc | 4395 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 109 HP | 437 HP |
| Engine RPM | 4000 RPM | 5500 RPM |
| Torque | 251 Nm | 649 Nm |
| Torque RPM | 2000 RPM | 4500 RPM |
| Engine Bore Size | 86.4 mm | 89 mm |
| Engine Stroke Size | 104.6 mm | 88 mm |
| Engine Compression Ratio | 8.4:1 | 10.0 :1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | AWD |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1310 kg | 2089 kg |
| Vehicle Length | 4790 mm | 5009 mm |
| Vehicle Width | 1820 mm | 2081 mm |
| Vehicle Height | 1390 mm | 1392 mm |
| Wheelbase Size | 2750 mm | 2968 mm |
| Fuel Tank Capacity | 60 L | 70 L |
