1999 Opel Omega vs. 1975 Mazda Cosmo
To start off, 1999 Opel Omega is newer by 24 year(s). Which means there will be less support and parts availability for 1975 Mazda Cosmo. In addition, the cost of maintenance, including insurance, on 1975 Mazda Cosmo would be higher. At 2,597 cc (6 cylinders), 1999 Opel Omega is equipped with a bigger engine. In terms of performance, 1999 Opel Omega (125 HP @ 4300 RPM) has 23 more horse power than 1975 Mazda Cosmo. (102 HP @ 5300 RPM). In normal driving conditions, 1999 Opel Omega should accelerate faster than 1975 Mazda Cosmo. With that said, vehicle weight also plays an important factor in acceleration. 1999 Opel Omega weights approximately 595 kg more than 1975 Mazda Cosmo. 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, 1999 Opel Omega (241 Nm @ 2200 RPM) has 74 more torque (in Nm) than 1975 Mazda Cosmo. (167 Nm @ 3000 RPM). This means 1999 Opel Omega will have an easier job in driving up hills or pulling heavy equipment than 1975 Mazda Cosmo. 1975 Mazda Cosmo has automatic transmission and 1999 Opel Omega has manual transmission. 1999 Opel Omega will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 1975 Mazda Cosmo will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1999 Opel Omega | 1975 Mazda Cosmo | |
| Make | Opel | Mazda |
| Model | Omega | Cosmo |
| Year Released | 1999 | 1975 |
| Engine Position | Front | Front |
| Engine Size | 2597 cc | 1970 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 125 HP | 102 HP |
| Engine RPM | 4300 RPM | 5300 RPM |
| Torque | 241 Nm | 167 Nm |
| Torque RPM | 2200 RPM | 3000 RPM |
| Engine Bore Size | 80 mm | 80 mm |
| Engine Stroke Size | 82.8 mm | 98 mm |
| Fuel Type | Diesel | Gasoline |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 4 seats |
| Vehicle Weight | 1710 kg | 1115 kg |
| Vehicle Length | 4900 mm | 4480 mm |
| Vehicle Width | 1790 mm | 1690 mm |
| Vehicle Height | 1510 mm | 1340 mm |
| Wheelbase Size | 2740 mm | 2520 mm |
