2005 Audi S4 vs. 1977 Mazda 121
To start off, 2005 Audi S4 is newer by 28 year(s). Which means there will be less support and parts availability for 1977 Mazda 121. In addition, the cost of maintenance, including insurance, on 1977 Mazda 121 would be higher. At 4,161 cc (8 cylinders), 2005 Audi S4 is equipped with a bigger engine. In terms of performance, 2005 Audi S4 (340 HP @ 6300 RPM) has 254 more horse power than 1977 Mazda 121. (86 HP @ 4800 RPM). In normal driving conditions, 2005 Audi S4 should accelerate faster than 1977 Mazda 121. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi S4 weights approximately 710 kg more than 1977 Mazda 121. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 2005 Audi S4 (410 Nm) has 250 more torque (in Nm) than 1977 Mazda 121. (160 Nm). This means 2005 Audi S4 will have an easier job in driving up hills or pulling heavy equipment than 1977 Mazda 121.
Compare all specifications:
| 2005 Audi S4 | 1977 Mazda 121 | |
| Make | Audi | Mazda |
| Model | S4 | 121 |
| Year Released | 2005 | 1977 |
| Engine Position | Front | Front |
| Engine Size | 4161 cc | 1970 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 340 HP | 86 HP |
| Engine RPM | 6300 RPM | 4800 RPM |
| Torque | 410 Nm | 160 Nm |
| Engine Bore Size | 85 mm | 80.1 mm |
| Engine Stroke Size | 93 mm | 98 mm |
| Engine Compression Ratio | 11.0:1 | 8.6:1 |
| Number of Seats | 4 seats | 4 seats |
| Vehicle Weight | 1840 kg | 1130 kg |
| Vehicle Length | 4580 mm | 4510 mm |
| Vehicle Width | 1780 mm | 1690 mm |
| Vehicle Height | 1400 mm | 1350 mm |
| Wheelbase Size | 2660 mm | 2520 mm |
