1991 Porsche 928 vs. 2011 Mercedes-Benz S
To start off, 2011 Mercedes-Benz S is newer by 20 year(s). Which means there will be less support and parts availability for 1991 Porsche 928. In addition, the cost of maintenance, including insurance, on 1991 Porsche 928 would be higher. At 5,500 cc (8 cylinders), 2011 Mercedes-Benz S is equipped with a bigger engine. In terms of performance, 2011 Mercedes-Benz S (536 HP @ 5500 RPM) has 230 more horse power than 1991 Porsche 928. (306 HP @ 5900 RPM) In normal driving conditions, 2011 Mercedes-Benz S should accelerate faster than 1991 Porsche 928. With that said, vehicle weight also plays an important factor in acceleration. 2011 Mercedes-Benz S weights approximately 700 kg more than 1991 Porsche 928. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
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, 2011 Mercedes-Benz S (799 Nm @ 2000 RPM) has 391 more torque (in Nm) than 1991 Porsche 928. (408 Nm @ 4100 RPM). This means 2011 Mercedes-Benz S will have an easier job in driving up hills or pulling heavy equipment than 1991 Porsche 928. 2011 Mercedes-Benz S has automatic transmission and 1991 Porsche 928 has manual transmission. 1991 Porsche 928 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2011 Mercedes-Benz S will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1991 Porsche 928 | 2011 Mercedes-Benz S | |
| Make | Porsche | Mercedes-Benz |
| Model | 928 | S |
| Year Released | 1991 | 2011 |
| Body Type | Coupe | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4663 cc | 5500 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 306 HP | 536 HP |
| Engine RPM | 5900 RPM | 5500 RPM |
| Torque | 408 Nm | 799 Nm |
| Torque RPM | 4100 RPM | 2000 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1530 kg | 2230 kg |
| Vehicle Length | 4530 mm | 5245 mm |
| Vehicle Width | 2060 mm | 1872 mm |
| Vehicle Height | 1290 mm | 1473 mm |
| Wheelbase Size | 2510 mm | 3165 mm |
| Fuel Tank Capacity | 76 L | 80 L |
