1978 Mercedes-Benz S vs. 1987 Porsche 928
To start off, 1987 Porsche 928 is newer by 9 year(s). Which means there will be less support and parts availability for 1978 Mercedes-Benz S. In addition, the cost of maintenance, including insurance, on 1978 Mercedes-Benz S would be higher. At 4,663 cc (8 cylinders), 1987 Porsche 928 is equipped with a bigger engine. In terms of performance, 1987 Porsche 928 (306 HP @ 5900 RPM) has 149 more horse power than 1978 Mercedes-Benz S. (157 HP @ 5500 RPM) In normal driving conditions, 1987 Porsche 928 should accelerate faster than 1978 Mercedes-Benz S. With that said, vehicle weight also plays an important factor in acceleration. 1978 Mercedes-Benz S weights approximately 80 kg more than 1987 Porsche 928.
Both vehicles are rear wheel drive (RWD) - it offers better handling in dry conditions; in addition, if you are looking to drift, both vehicles do the job better than front wheel drive vehicles. 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, 1987 Porsche 928 (408 Nm @ 4100 RPM) has 185 more torque (in Nm) than 1978 Mercedes-Benz S. (223 Nm @ 4000 RPM). This means 1987 Porsche 928 will have an easier job in driving up hills or pulling heavy equipment than 1978 Mercedes-Benz S.
Compare all specifications:
| 1978 Mercedes-Benz S | 1987 Porsche 928 | |
| Make | Mercedes-Benz | Porsche |
| Model | S | 928 |
| Year Released | 1978 | 1987 |
| Body Type | Sedan | Coupe |
| Engine Position | Front | Front |
| Engine Size | 2746 cc | 4663 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 157 HP | 306 HP |
| Engine RPM | 5500 RPM | 5900 RPM |
| Torque | 223 Nm | 408 Nm |
| Torque RPM | 4000 RPM | 4100 RPM |
| Engine Bore Size | 86 mm | 97 mm |
| Engine Stroke Size | 78.8 mm | 78.9 mm |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1610 kg | 1530 kg |
| Vehicle Length | 4740 mm | 4450 mm |
| Vehicle Width | 1880 mm | 1840 mm |
| Vehicle Height | 1430 mm | 1290 mm |
| Wheelbase Size | 2870 mm | 2510 mm |
| Fuel Tank Capacity | 85 L | 76 L |
