1981 Alfa Romeo Alfa 6 vs. 1970 Opel Manta
To start off, 1981 Alfa Romeo Alfa 6 is newer by 11 year(s). Which means there will be less support and parts availability for 1970 Opel Manta. In addition, the cost of maintenance, including insurance, on 1970 Opel Manta would be higher. At 2,494 cc (5 cylinders), 1981 Alfa Romeo Alfa 6 is equipped with a bigger engine. In terms of performance, 1981 Alfa Romeo Alfa 6 (104 HP @ 4300 RPM) has 15 more horse power than 1970 Opel Manta. (89 HP @ 5200 RPM). In normal driving conditions, 1981 Alfa Romeo Alfa 6 should accelerate faster than 1970 Opel Manta. With that said, vehicle weight also plays an important factor in acceleration. 1981 Alfa Romeo Alfa 6 weights approximately 580 kg more than 1970 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, 1981 Alfa Romeo Alfa 6 (206 Nm @ 2400 RPM) has 60 more torque (in Nm) than 1970 Opel Manta. (146 Nm @ 2500 RPM). This means 1981 Alfa Romeo Alfa 6 will have an easier job in driving up hills or pulling heavy equipment than 1970 Opel Manta.
Compare all specifications:
| 1981 Alfa Romeo Alfa 6 | 1970 Opel Manta | |
| Make | Alfa Romeo | Opel |
| Model | Alfa 6 | Manta |
| Year Released | 1981 | 1970 |
| Engine Position | Front | Front |
| Engine Size | 2494 cc | 1897 cc |
| Engine Cylinders | 5 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 104 HP | 89 HP |
| Engine RPM | 4300 RPM | 5200 RPM |
| Torque | 206 Nm | 146 Nm |
| Torque RPM | 2400 RPM | 2500 RPM |
| Engine Bore Size | 88 mm | 93.1 mm |
| Engine Stroke Size | 82 mm | 69.8 mm |
| Engine Compression Ratio | 22.0:1 | 9.0:1 |
| Fuel Type | Diesel | Gasoline |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1580 kg | 1000 kg |
| Vehicle Length | 4690 mm | 4300 mm |
| Vehicle Width | 1690 mm | 1640 mm |
| Vehicle Height | 1430 mm | 1360 mm |
| Wheelbase Size | 2610 mm | 2440 mm |
| Fuel Tank Capacity | 50 L | 70 L |
