1991 Mazda RX-7 vs. 1978 Opel Manta
To start off, 1991 Mazda RX-7 is newer by 13 year(s). Which means there will be less support and parts availability for 1978 Opel Manta. In addition, the cost of maintenance, including insurance, on 1978 Opel Manta would be higher. At 2,616 cc, 1991 Mazda RX-7 is equipped with a bigger engine. In terms of performance, 1991 Mazda RX-7 (197 HP @ 6500 RPM) has 97 more horse power than 1978 Opel Manta. (100 HP @ 5400 RPM). In normal driving conditions, 1991 Mazda RX-7 should accelerate faster than 1978 Opel Manta. With that said, vehicle weight also plays an important factor in acceleration. 1991 Mazda RX-7 weights approximately 252 kg more than 1978 Opel Manta. 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, 1991 Mazda RX-7 (270 Nm @ 3500 RPM) has 135 more torque (in Nm) than 1978 Opel Manta. (135 Nm @ 3800 RPM). This means 1991 Mazda RX-7 will have an easier job in driving up hills or pulling heavy equipment than 1978 Opel Manta.
Compare all specifications:
| 1991 Mazda RX-7 | 1978 Opel Manta | |
| Make | Mazda | Opel |
| Model | RX-7 | Manta |
| Year Released | 1991 | 1978 |
| Body Type | Convertible | Coupe |
| Engine Position | Front | Front |
| Engine Size | 2616 cc | 1979 cc |
| Engine Type | dual-disk rotary | in-line |
| Horse Power | 197 HP | 100 HP |
| Engine RPM | 6500 RPM | 5400 RPM |
| Torque | 270 Nm | 135 Nm |
| Torque RPM | 3500 RPM | 3800 RPM |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1302 kg | 1050 kg |
| Vehicle Length | 4320 mm | 4460 mm |
| Vehicle Width | 1700 mm | 1680 mm |
| Vehicle Height | 1270 mm | 1340 mm |
| Wheelbase Size | 2430 mm | 2520 mm |
| Fuel Tank Capacity | 75 L | 50 L |
