1979 Mazda 929 vs. 2007 Opel Vectra
To start off, 2007 Opel Vectra is newer by 28 year(s). Which means there will be less support and parts availability for 1979 Mazda 929. In addition, the cost of maintenance, including insurance, on 1979 Mazda 929 would be higher. At 2,958 cc (6 cylinders), 2007 Opel Vectra is equipped with a bigger engine. In terms of performance, 2007 Opel Vectra (175 HP @ 4000 RPM) has 92 more horse power than 1979 Mazda 929. (83 HP @ 5000 RPM) In normal driving conditions, 2007 Opel Vectra should accelerate faster than 1979 Mazda 929. With that said, vehicle weight also plays an important factor in acceleration. 2007 Opel Vectra weights approximately 543 kg more than 1979 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, 2007 Opel Vectra (370 Nm @ 1900 RPM) has 236 more torque (in Nm) than 1979 Mazda 929. (134 Nm @ 3000 RPM). This means 2007 Opel Vectra will have an easier job in driving up hills or pulling heavy equipment than 1979 Mazda 929.
Compare all specifications:
| 1979 Mazda 929 | 2007 Opel Vectra | |
| Make | Mazda | Opel |
| Model | 929 | Vectra |
| Year Released | 1979 | 2007 |
| Engine Position | Front | Front |
| Engine Size | 1767 cc | 2958 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Horse Power | 83 HP | 175 HP |
| Engine RPM | 5000 RPM | 4000 RPM |
| Torque | 134 Nm | 370 Nm |
| Torque RPM | 3000 RPM | 1900 RPM |
| Engine Bore Size | 80 mm | 87.5 mm |
| Engine Stroke Size | 88 mm | 82 mm |
| Engine Compression Ratio | 8.6:1 | 18.5:1 |
| Fuel Type | Gasoline | Diesel |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1070 kg | 1613 kg |
| Vehicle Length | 4410 mm | 4600 mm |
| Vehicle Width | 1670 mm | 1800 mm |
| Vehicle Height | 1420 mm | 1470 mm |
| Wheelbase Size | 2520 mm | 2710 mm |
| Fuel Tank Capacity | 55 L | 61 L |
