1999 Opel Omega vs. 1978 Mazda Cosmo
To start off, 1999 Opel Omega is newer by 21 year(s). Which means there will be less support and parts availability for 1978 Mazda Cosmo. In addition, the cost of maintenance, including insurance, on 1978 Mazda Cosmo would be higher. At 1,998 cc (4 cylinders), 1999 Opel Omega is equipped with a bigger engine. In terms of performance, 1999 Opel Omega (134 HP @ 5600 RPM) has 41 more horse power than 1978 Mazda Cosmo. (93 HP @ 5500 RPM). In normal driving conditions, 1999 Opel Omega should accelerate faster than 1978 Mazda Cosmo. With that said, vehicle weight also plays an important factor in acceleration. 1999 Opel Omega weights approximately 478 kg more than 1978 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 (185 Nm @ 4000 RPM) has 35 more torque (in Nm) than 1978 Mazda Cosmo. (150 Nm @ 3300 RPM). This means 1999 Opel Omega will have an easier job in driving up hills or pulling heavy equipment than 1978 Mazda Cosmo. 1978 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. 1978 Mazda Cosmo will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1999 Opel Omega | 1978 Mazda Cosmo | |
| Make | Opel | Mazda |
| Model | Omega | Cosmo |
| Year Released | 1999 | 1978 |
| Engine Position | Front | Front |
| Engine Size | 1998 cc | 1769 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 134 HP | 93 HP |
| Engine RPM | 5600 RPM | 5500 RPM |
| Torque | 185 Nm | 150 Nm |
| Torque RPM | 4000 RPM | 3300 RPM |
| Engine Bore Size | 86.1 mm | 80 mm |
| Engine Stroke Size | 86 mm | 88 mm |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 4 seats |
| Vehicle Weight | 1570 kg | 1092 kg |
| Vehicle Length | 4900 mm | 4480 mm |
| Vehicle Width | 1790 mm | 1690 mm |
| Vehicle Height | 1460 mm | 1340 mm |
| Wheelbase Size | 2740 mm | 2520 mm |
