2007 Audi A4 vs. 1979 Mazda 929
To start off, 2007 Audi A4 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 3,123 cc (6 cylinders), 2007 Audi A4 is equipped with a bigger engine. In terms of performance, 2007 Audi A4 (255 HP @ 6500 RPM) has 172 more horse power than 1979 Mazda 929. (83 HP @ 5000 RPM). In normal driving conditions, 2007 Audi A4 should accelerate faster than 1979 Mazda 929. With that said, vehicle weight also plays an important factor in acceleration. 2007 Audi A4 weights approximately 810 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 Audi A4 (330 Nm @ 3250 RPM) has 196 more torque (in Nm) than 1979 Mazda 929. (134 Nm @ 3000 RPM). This means 2007 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 1979 Mazda 929.
Compare all specifications:
| 2007 Audi A4 | 1979 Mazda 929 | |
| Make | Audi | Mazda |
| Model | A4 | 929 |
| Year Released | 2007 | 1979 |
| Engine Position | Front | Front |
| Engine Size | 3123 cc | 1767 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 255 HP | 83 HP |
| Engine RPM | 6500 RPM | 5000 RPM |
| Torque | 330 Nm | 134 Nm |
| Torque RPM | 3250 RPM | 3000 RPM |
| Engine Bore Size | 84 mm | 80 mm |
| Engine Stroke Size | 96 mm | 88 mm |
| Engine Compression Ratio | 11.3:1 | 8.6:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1880 kg | 1070 kg |
| Vehicle Length | 4590 mm | 4410 mm |
| Vehicle Width | 1780 mm | 1670 mm |
| Vehicle Height | 1430 mm | 1420 mm |
| Wheelbase Size | 2660 mm | 2520 mm |
| Fuel Tank Capacity | 70 L | 55 L |
