2005 Audi S4 vs. 1975 Opel Kadett
To start off, 2005 Audi S4 is newer by 30 year(s). Which means there will be less support and parts availability for 1975 Opel Kadett. In addition, the cost of maintenance, including insurance, on 1975 Opel Kadett 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 289 more horse power than 1975 Opel Kadett. (51 HP @ 5600 RPM). In normal driving conditions, 2005 Audi S4 should accelerate faster than 1975 Opel Kadett. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi S4 weights approximately 1020 kg more than 1975 Opel Kadett. 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 329 more torque (in Nm) than 1975 Opel Kadett. (81 Nm). This means 2005 Audi S4 will have an easier job in driving up hills or pulling heavy equipment than 1975 Opel Kadett.
Compare all specifications:
| 2005 Audi S4 | 1975 Opel Kadett | |
| Make | Audi | Opel |
| Model | S4 | Kadett |
| Year Released | 2005 | 1975 |
| Body Type | Convertible | Coupe |
| Engine Position | Front | Front |
| Engine Size | 4161 cc | 1196 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 340 HP | 51 HP |
| Engine RPM | 6300 RPM | 5600 RPM |
| Torque | 410 Nm | 81 Nm |
| Engine Bore Size | 85 mm | 79 mm |
| Engine Stroke Size | 93 mm | 61 mm |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 3 doors |
| Vehicle Weight | 1840 kg | 820 kg |
| Vehicle Length | 4580 mm | 4150 mm |
| Vehicle Width | 1780 mm | 1590 mm |
| Vehicle Height | 1400 mm | 1340 mm |
| Wheelbase Size | 2660 mm | 2410 mm |
| Fuel Tank Capacity | 63 L | 43 L |
