2005 Mercedes-Benz SL vs. 1978 Porsche 911
To start off, 2005 Mercedes-Benz SL is newer by 27 year(s). Which means there will be less support and parts availability for 1978 Porsche 911. In addition, the cost of maintenance, including insurance, on 1978 Porsche 911 would be higher. At 4,966 cc (8 cylinders), 2005 Mercedes-Benz SL is equipped with a bigger engine. In terms of performance, 1978 Porsche 911 (355 HP @ 4200 RPM) has 53 more horse power than 2005 Mercedes-Benz SL. (302 HP @ 4200 RPM) In normal driving conditions, 1978 Porsche 911 should accelerate faster than 2005 Mercedes-Benz SL. With that said, vehicle weight also plays an important factor in acceleration. 2005 Mercedes-Benz SL weights approximately 665 kg more than 1978 Porsche 911.
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, 1978 Porsche 911 (750 Nm) has 280 more torque (in Nm) than 2005 Mercedes-Benz SL. (470 Nm). This means 1978 Porsche 911 will have an easier job in driving up hills or pulling heavy equipment than 2005 Mercedes-Benz SL.
Compare all specifications:
| 2005 Mercedes-Benz SL | 1978 Porsche 911 | |
| Make | Mercedes-Benz | Porsche |
| Model | SL | 911 |
| Year Released | 2005 | 1978 |
| Body Type | Convertible | Coupe |
| Engine Position | Front | Rear |
| Engine Size | 4966 cc | 2992 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | boxer |
| Horse Power | 302 HP | 355 HP |
| Engine RPM | 4200 RPM | 4200 RPM |
| Torque | 470 Nm | 750 Nm |
| Drive Type | Rear | Rear |
| Number of Seats | 2 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1844 kg | 1179 kg |
| Vehicle Length | 4540 mm | 4300 mm |
| Vehicle Width | 1820 mm | 1660 mm |
| Vehicle Height | 1300 mm | 1330 mm |
| Wheelbase Size | 2570 mm | 2270 mm |
| Fuel Tank Capacity | 80 L | 80 L |
