2009 Audi A4 vs. 1979 Mazda 121
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 121. In addition, the cost of maintenance, including insurance, on 1979 Mazda 121 would be higher. At 2,965 cc (6 cylinders), 2009 Audi A4 is equipped with a bigger engine. In terms of performance, 2009 Audi A4 (222 HP @ 4000 RPM) has 132 more horse power than 1979 Mazda 121. (90 HP @ 4800 RPM). In normal driving conditions, 2009 Audi A4 should accelerate faster than 1979 Mazda 121. With that said, vehicle weight also plays an important factor in acceleration. 2009 Audi A4 weights approximately 476 kg more than 1979 Mazda 121. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2009 Audi A4 is four wheel drive (4WD), it will have significant more traction and grip than 1979 Mazda 121. In wet, icy, snow, or gravel driving conditions, 2009 Audi A4 will offer significantly more control. With that said, do keep in mind that many other factors such as speed and the wear on your tires can also have significant impact on traction and control. Let's talk about torque, 2009 Audi A4 (450 Nm @ 1400 RPM) has 290 more torque (in Nm) than 1979 Mazda 121. (160 Nm @ 3000 RPM). This means 2009 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 1979 Mazda 121.
Compare all specifications:
| 2009 Audi A4 | 1979 Mazda 121 | |
| Make | Audi | Mazda |
| Model | A4 | 121 |
| Year Released | 2009 | 1979 |
| Engine Position | Front | Front |
| Engine Size | 2965 cc | 1970 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 222 HP | 90 HP |
| Engine RPM | 4000 RPM | 4800 RPM |
| Torque | 450 Nm | 160 Nm |
| Torque RPM | 1400 RPM | 3000 RPM |
| Engine Bore Size | 83 mm | 80 mm |
| Engine Stroke Size | 91.4 mm | 98 mm |
| Engine Compression Ratio | 17.0:1 | 8.6:1 |
| Fuel Type | Diesel | Gasoline |
| Drive Type | 4WD | Rear |
| Number of Seats | 5 seats | 4 seats |
| Vehicle Weight | 1610 kg | 1134 kg |
| Vehicle Length | 4550 mm | 4510 mm |
| Vehicle Width | 1780 mm | 1690 mm |
| Vehicle Height | 1430 mm | 1350 mm |
| Wheelbase Size | 2660 mm | 2520 mm |
