1978 Mazda 929 vs. 2009 Audi A4
To start off, 2009 Audi A4 is newer by 31 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 2,496 cc (6 cylinders), 2009 Audi A4 is equipped with a bigger engine. In terms of performance, 2009 Audi A4 (178 HP @ 4000 RPM) has 95 more horse power than 1978 Mazda 929. (83 HP @ 5000 RPM) In normal driving conditions, 2009 Audi A4 should accelerate faster than 1978 Mazda 929. With that said, vehicle weight also plays an important factor in acceleration. 2009 Audi A4 weights approximately 520 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, 2009 Audi A4 (370 Nm @ 1500 RPM) has 236 more torque (in Nm) than 1978 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 1978 Mazda 929.
Compare all specifications:
| 1978 Mazda 929 | 2009 Audi A4 | |
| Make | Mazda | Audi |
| Model | 929 | A4 |
| Year Released | 1978 | 2009 |
| Engine Position | Front | Front |
| Engine Size | 1769 cc | 2496 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Horse Power | 83 HP | 178 HP |
| Engine RPM | 5000 RPM | 4000 RPM |
| Torque | 134 Nm | 370 Nm |
| Torque RPM | 3000 RPM | 1500 RPM |
| Engine Bore Size | 80 mm | 78.3 mm |
| Engine Stroke Size | 88 mm | 86.4 mm |
| Fuel Type | Gasoline | Diesel |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1070 kg | 1590 kg |
| Vehicle Length | 4410 mm | 4550 mm |
| Vehicle Width | 1670 mm | 1780 mm |
| Vehicle Height | 1420 mm | 1430 mm |
| Wheelbase Size | 2520 mm | 2660 mm |
| Fuel Tank Capacity | 55 L | 66 L |
