1986 Alfa Romeo 75 vs. 1970 Opel Commodore
To start off, 1986 Alfa Romeo 75 is newer by 16 year(s). Which means there will be less support and parts availability for 1970 Opel Commodore. In addition, the cost of maintenance, including insurance, on 1970 Opel Commodore would be higher. At 2,490 cc (6 cylinders), 1970 Opel Commodore is equipped with a bigger engine. In terms of performance, 1986 Alfa Romeo 75 (156 HP @ 5600 RPM) has 8 more horse power than 1970 Opel Commodore. (148 HP @ 5800 RPM). In normal driving conditions, 1986 Alfa Romeo 75 should accelerate faster than 1970 Opel Commodore. With that said, vehicle weight also plays an important factor in acceleration. 1970 Opel Commodore weights approximately 20 kg more than 1986 Alfa Romeo 75.
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, 1986 Alfa Romeo 75 (209 Nm @ 4000 RPM) has 13 more torque (in Nm) than 1970 Opel Commodore. (196 Nm @ 4500 RPM). This means 1986 Alfa Romeo 75 will have an easier job in driving up hills or pulling heavy equipment than 1970 Opel Commodore.
Compare all specifications:
| 1986 Alfa Romeo 75 | 1970 Opel Commodore | |
| Make | Alfa Romeo | Opel |
| Model | 75 | Commodore |
| Year Released | 1986 | 1970 |
| Body Type | Sedan | Coupe |
| Engine Position | Front | Front |
| Engine Size | 2393 cc | 2490 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Horse Power | 156 HP | 148 HP |
| Engine RPM | 5600 RPM | 5800 RPM |
| Torque | 209 Nm | 196 Nm |
| Torque RPM | 4000 RPM | 4500 RPM |
| Engine Bore Size | 88 mm | 87 mm |
| Engine Stroke Size | 68.3 mm | 69.8 mm |
| Engine Compression Ratio | 9.0:1 | 9.7:1 |
| Drive Type | Rear | Rear |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1210 kg | 1230 kg |
| Vehicle Length | 4340 mm | 4580 mm |
| Vehicle Width | 1640 mm | 1760 mm |
| Vehicle Height | 1360 mm | 1440 mm |
| Wheelbase Size | 2520 mm | 2670 mm |
| Fuel Tank Capacity | 49 L | 70 L |
