1991 Porsche 911 vs. 2010 Mercedes-Benz SL
To start off, 2010 Mercedes-Benz SL is newer by 19 year(s). Which means there will be less support and parts availability for 1991 Porsche 911. In addition, the cost of maintenance, including insurance, on 1991 Porsche 911 would be higher. At 5,512 cc (12 cylinders), 2010 Mercedes-Benz SL is equipped with a bigger engine. In terms of performance, 2010 Mercedes-Benz SL (510 HP @ 5000 RPM) has 282 more horse power than 1991 Porsche 911. (228 HP @ 5900 RPM) In normal driving conditions, 2010 Mercedes-Benz SL should accelerate faster than 1991 Porsche 911. With that said, vehicle weight also plays an important factor in acceleration. 2010 Mercedes-Benz SL weights approximately 775 kg more than 1991 Porsche 911. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 2010 Mercedes-Benz SL (830 Nm @ 1900 RPM) has 544 more torque (in Nm) than 1991 Porsche 911. (286 Nm @ 4800 RPM). This means 2010 Mercedes-Benz SL will have an easier job in driving up hills or pulling heavy equipment than 1991 Porsche 911.
Compare all specifications:
| 1991 Porsche 911 | 2010 Mercedes-Benz SL | |
| Make | Porsche | Mercedes-Benz |
| Model | 911 | SL |
| Year Released | 1991 | 2010 |
| Body Type | Roadster | Convertible |
| Engine Position | Rear | Front |
| Engine Size | 3163 cc | 5512 cc |
| Engine Cylinders | 6 cylinders | 12 cylinders |
| Engine Type | boxer | V |
| Horse Power | 228 HP | 510 HP |
| Engine RPM | 5900 RPM | 5000 RPM |
| Torque | 286 Nm | 830 Nm |
| Torque RPM | 4800 RPM | 1900 RPM |
| Fuel Type | Gasoline | Diesel |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1175 kg | 1950 kg |
| Vehicle Length | 4300 mm | 4540 mm |
| Vehicle Width | 1660 mm | 1820 mm |
| Vehicle Height | 1260 mm | 1300 mm |
