2009 Audi A6 vs. 1973 Mazda 929
To start off, 2009 Audi A6 is newer by 36 year(s). Which means there will be less support and parts availability for 1973 Mazda 929. In addition, the cost of maintenance, including insurance, on 1973 Mazda 929 would be higher. At 4,172 cc (8 cylinders), 2009 Audi A6 is equipped with a bigger engine. In terms of performance, 2009 Audi A6 (296 HP @ 6200 RPM) has 213 more horse power than 1973 Mazda 929. (83 HP @ 5000 RPM). In normal driving conditions, 2009 Audi A6 should accelerate faster than 1973 Mazda 929. With that said, vehicle weight also plays an important factor in acceleration. 2009 Audi A6 weights approximately 680 kg more than 1973 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 A6 (400 Nm @ 3000 RPM) has 266 more torque (in Nm) than 1973 Mazda 929. (134 Nm @ 3000 RPM). This means 2009 Audi A6 will have an easier job in driving up hills or pulling heavy equipment than 1973 Mazda 929.
Compare all specifications:
| 2009 Audi A6 | 1973 Mazda 929 | |
| Make | Audi | Mazda |
| Model | A6 | 929 |
| Year Released | 2009 | 1973 |
| Engine Position | Front | Front |
| Engine Size | 4172 cc | 1769 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 296 HP | 83 HP |
| Engine RPM | 6200 RPM | 5000 RPM |
| Torque | 400 Nm | 134 Nm |
| Torque RPM | 3000 RPM | 3000 RPM |
| Engine Bore Size | 84.5 mm | 80 mm |
| Engine Stroke Size | 93 mm | 88 mm |
| Fuel Type | Gasoline - Premium | Gasoline |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1750 kg | 1070 kg |
| Vehicle Length | 4840 mm | 4410 mm |
| Vehicle Width | 1860 mm | 1670 mm |
| Vehicle Height | 1460 mm | 1420 mm |
| Wheelbase Size | 2770 mm | 2520 mm |
| Fuel Tank Capacity | 82 L | 55 L |
