1978 Mazda 929 vs. 1999 Opel Omega
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 929. In addition, the cost of maintenance, including insurance, on 1978 Mazda 929 would be higher. At 2,196 cc (4 cylinders), 1999 Opel Omega is equipped with a bigger engine. In terms of performance, 1999 Opel Omega (142 HP @ 5400 RPM) has 59 more horse power than 1978 Mazda 929. (83 HP @ 5000 RPM) In normal driving conditions, 1999 Opel Omega should accelerate faster than 1978 Mazda 929. With that said, vehicle weight also plays an important factor in acceleration. 1999 Opel Omega weights approximately 663 kg more than 1978 Mazda 929. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 1999 Opel Omega (209 Nm @ 4000 RPM) has 75 more torque (in Nm) than 1978 Mazda 929. (134 Nm @ 3000 RPM). This means 1999 Opel Omega will have an easier job in driving up hills or pulling heavy equipment than 1978 Mazda 929.
Compare all specifications:
| 1978 Mazda 929 | 1999 Opel Omega | |
| Make | Mazda | Opel |
| Model | 929 | Omega |
| Year Released | 1978 | 1999 |
| Engine Position | Front | Front |
| Engine Size | 1769 cc | 2196 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 83 HP | 142 HP |
| Engine RPM | 5000 RPM | 5400 RPM |
| Torque | 134 Nm | 209 Nm |
| Torque RPM | 3000 RPM | 4000 RPM |
| Engine Bore Size | 80 mm | 86 mm |
| Engine Stroke Size | 88 mm | 94.6 mm |
| Fuel Type | Gasoline | Gasoline |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1070 kg | 1733 kg |
| Vehicle Length | 4410 mm | 4900 mm |
| Vehicle Width | 1670 mm | 1780 mm |
| Vehicle Height | 1420 mm | 1460 mm |
| Wheelbase Size | 2520 mm | 2850 mm |
| Fuel Tank Capacity | 55 L | 75 L |
