2009 Audi A4 vs. 1979 Mazda 929
To start off, 2009 Audi A4 is newer by 30 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 1,896 cc (4 cylinders), 2009 Audi A4 is equipped with a bigger engine. In terms of performance, 2009 Audi A4 (113 HP @ 4000 RPM) has 30 more horse power than 1979 Mazda 929. (83 HP @ 5000 RPM). In normal driving conditions, 2009 Audi A4 should accelerate faster than 1979 Mazda 929. With that said, vehicle weight also plays an important factor in acceleration. 2009 Audi A4 weights approximately 320 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, 2009 Audi A4 (285 Nm @ 1900 RPM) has 151 more torque (in Nm) than 1979 Mazda 929. (134 Nm @ 3000 RPM). This means 2009 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 1979 Mazda 929.
Compare all specifications:
| 2009 Audi A4 | 1979 Mazda 929 | |
| Make | Audi | Mazda |
| Model | A4 | 929 |
| Year Released | 2009 | 1979 |
| Engine Position | Front | Front |
| Engine Size | 1896 cc | 1767 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 113 HP | 83 HP |
| Engine RPM | 4000 RPM | 5000 RPM |
| Torque | 285 Nm | 134 Nm |
| Torque RPM | 1900 RPM | 3000 RPM |
| Engine Bore Size | 79.6 mm | 80 mm |
| Engine Stroke Size | 95.5 mm | 88 mm |
| Engine Compression Ratio | 19.0:1 | 8.6:1 |
| Fuel Type | Diesel | Gasoline |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1390 kg | 1070 kg |
| Vehicle Length | 4590 mm | 4410 mm |
| Vehicle Width | 1780 mm | 1670 mm |
| Vehicle Height | 1430 mm | 1420 mm |
| Wheelbase Size | 2650 mm | 2520 mm |
| Fuel Tank Capacity | 70 L | 55 L |
