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 6,208 cc (8 cylinders), 2010 Mercedes-Benz SL is equipped with a bigger engine. In terms of performance, 2010 Mercedes-Benz SL (518 HP @ 6800 RPM) has 290 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 1655 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 (631 Nm @ 5200 RPM) has 345 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 | 6208 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | boxer | V |
| Horse Power | 228 HP | 518 HP |
| Engine RPM | 5900 RPM | 6800 RPM |
| Torque | 286 Nm | 631 Nm |
| Torque RPM | 4800 RPM | 5200 RPM |
| Fuel Type | Gasoline | Diesel |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1175 kg | 2830 kg |
| Vehicle Length | 4300 mm | 4540 mm |
| Vehicle Width | 1660 mm | 1820 mm |
| Vehicle Height | 1260 mm | 1300 mm |
