1966 Alfa Romeo 2600 vs. 1973 Opel Admiral
To start off, 1973 Opel Admiral is newer by 7 year(s). Which means there will be less support and parts availability for 1966 Alfa Romeo 2600. In addition, the cost of maintenance, including insurance, on 1966 Alfa Romeo 2600 would be higher. At 2,784 cc (6 cylinders), 1973 Opel Admiral is equipped with a bigger engine. In terms of performance, 1966 Alfa Romeo 2600 (163 HP @ 5900 RPM) has 21 more horse power than 1973 Opel Admiral. (142 HP @ 5200 RPM). In normal driving conditions, 1966 Alfa Romeo 2600 should accelerate faster than 1973 Opel Admiral. With that said, vehicle weight also plays an important factor in acceleration. 1973 Opel Admiral weights approximately 105 kg more than 1966 Alfa Romeo 2600.
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, 1973 Opel Admiral (227 Nm @ 3600 RPM) has 7 more torque (in Nm) than 1966 Alfa Romeo 2600. (220 Nm @ 4000 RPM). This means 1973 Opel Admiral will have an easier job in driving up hills or pulling heavy equipment than 1966 Alfa Romeo 2600.
Compare all specifications:
| 1966 Alfa Romeo 2600 | 1973 Opel Admiral | |
| Make | Alfa Romeo | Opel |
| Model | 2600 | Admiral |
| Year Released | 1966 | 1973 |
| Engine Position | Front | Front |
| Engine Size | 2583 cc | 2784 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 163 HP | 142 HP |
| Engine RPM | 5900 RPM | 5200 RPM |
| Torque | 220 Nm | 227 Nm |
| Torque RPM | 4000 RPM | 3600 RPM |
| Engine Bore Size | 83 mm | 92 mm |
| Engine Stroke Size | 79.6 mm | 69.8 mm |
| Engine Compression Ratio | 9.0:1 | 9.5:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1370 kg | 1475 kg |
| Vehicle Length | 4380 mm | 4910 mm |
| Vehicle Width | 1710 mm | 1860 mm |
| Vehicle Height | 1390 mm | 1460 mm |
| Wheelbase Size | 2510 mm | 2850 mm |
| Fuel Tank Capacity | 60 L | 80 L |
