1978 Mazda RX-7 vs. 1996 Mercedes-Benz SL
To start off, 1996 Mercedes-Benz SL is newer by 18 year(s). Which means there will be less support and parts availability for 1978 Mazda RX-7. In addition, the cost of maintenance, including insurance, on 1978 Mazda RX-7 would be higher. At 4,973 cc (8 cylinders), 1996 Mercedes-Benz SL is equipped with a bigger engine. In terms of performance, 1996 Mercedes-Benz SL (317 HP @ 5600 RPM) has 212 more horse power than 1978 Mazda RX-7. (105 HP @ 6000 RPM) In normal driving conditions, 1996 Mercedes-Benz SL should accelerate faster than 1978 Mazda RX-7. With that said, vehicle weight also plays an important factor in acceleration. 1996 Mercedes-Benz SL weights approximately 780 kg more than 1978 Mazda RX-7. 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, 1996 Mercedes-Benz SL (471 Nm @ 3900 RPM) has 326 more torque (in Nm) than 1978 Mazda RX-7. (145 Nm @ 4000 RPM). This means 1996 Mercedes-Benz SL will have an easier job in driving up hills or pulling heavy equipment than 1978 Mazda RX-7. 1996 Mercedes-Benz SL has automatic transmission and 1978 Mazda RX-7 has manual transmission. 1978 Mazda RX-7 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 1996 Mercedes-Benz SL will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1978 Mazda RX-7 | 1996 Mercedes-Benz SL | |
| Make | Mazda | Mercedes-Benz |
| Model | RX-7 | SL |
| Year Released | 1978 | 1996 |
| Body Type | Coupe | Convertible |
| Engine Position | Front | Front |
| Engine Size | 2292 cc | 4973 cc |
| Engine Type | dual-disk rotary | in-line |
| Horse Power | 105 HP | 317 HP |
| Engine RPM | 6000 RPM | 5600 RPM |
| Torque | 145 Nm | 471 Nm |
| Torque RPM | 4000 RPM | 3900 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Automatic |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1060 kg | 1840 kg |
| Vehicle Length | 4290 mm | 4470 mm |
| Vehicle Width | 1680 mm | 1820 mm |
| Vehicle Height | 1280 mm | 1300 mm |
| Wheelbase Size | 2430 mm | 2520 mm |
| Fuel Tank Capacity | 65 L | 80 L |
