2007 Audi RS4 vs. 1975 Mazda 818
To start off, 2007 Audi RS4 is newer by 32 year(s). Which means there will be less support and parts availability for 1975 Mazda 818. In addition, the cost of maintenance, including insurance, on 1975 Mazda 818 would be higher. At 4,161 cc (8 cylinders), 2007 Audi RS4 is equipped with a bigger engine. In terms of performance, 2007 Audi RS4 (414 HP @ 7800 RPM) has 346 more horse power than 1975 Mazda 818. (68 HP @ 6200 RPM). In normal driving conditions, 2007 Audi RS4 should accelerate faster than 1975 Mazda 818. With that said, vehicle weight also plays an important factor in acceleration. 2007 Audi RS4 weights approximately 830 kg more than 1975 Mazda 818. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2007 Audi RS4 is four wheel drive (4WD), it will have significant more traction and grip than 1975 Mazda 818. In wet, icy, snow, or gravel driving conditions, 2007 Audi RS4 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, 2007 Audi RS4 (430 Nm @ 5500 RPM) has 338 more torque (in Nm) than 1975 Mazda 818. (92 Nm @ 4000 RPM). This means 2007 Audi RS4 will have an easier job in driving up hills or pulling heavy equipment than 1975 Mazda 818.
Compare all specifications:
| 2007 Audi RS4 | 1975 Mazda 818 | |
| Make | Audi | Mazda |
| Model | RS4 | 818 |
| Year Released | 2007 | 1975 |
| Engine Position | Front | Front |
| Engine Size | 4161 cc | 1272 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 414 HP | 68 HP |
| Engine RPM | 7800 RPM | 6200 RPM |
| Torque | 430 Nm | 92 Nm |
| Torque RPM | 5500 RPM | 4000 RPM |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Manual |
| Vehicle Weight | 1710 kg | 880 kg |
| Vehicle Length | 4590 mm | 4080 mm |
| Vehicle Width | 1820 mm | 1600 mm |
| Vehicle Height | 1420 mm | 1390 mm |
| Wheelbase Size | 2660 mm | 2320 mm |
