2009 Audi A4 vs. 1981 Mazda RX-7
To start off, 2009 Audi A4 is newer by 28 year(s). Which means there will be less support and parts availability for 1981 Mazda RX-7. In addition, the cost of maintenance, including insurance, on 1981 Mazda RX-7 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 118 more horse power than 1981 Mazda RX-7. (104 HP @ 6000 RPM). In normal driving conditions, 2009 Audi A4 should accelerate faster than 1981 Mazda RX-7. With that said, vehicle weight also plays an important factor in acceleration. 2009 Audi A4 weights approximately 550 kg more than 1981 Mazda RX-7. 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 1981 Mazda RX-7. 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 305 more torque (in Nm) than 1981 Mazda RX-7. (145 Nm @ 4000 RPM). This means 2009 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 1981 Mazda RX-7.
Compare all specifications:
| 2009 Audi A4 | 1981 Mazda RX-7 | |
| Make | Audi | Mazda |
| Model | A4 | RX-7 |
| Year Released | 2009 | 1981 |
| Body Type | Sedan | Coupe |
| Engine Position | Front | Front |
| Engine Size | 2965 cc | 2292 cc |
| Engine Type | V | dual-disk rotary |
| Horse Power | 222 HP | 104 HP |
| Engine RPM | 4000 RPM | 6000 RPM |
| Torque | 450 Nm | 145 Nm |
| Torque RPM | 1400 RPM | 4000 RPM |
| Fuel Type | Diesel | Gasoline |
| Top Speed | 235 km/hour | 188 km/hour |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Manual |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1610 kg | 1060 kg |
| Vehicle Length | 4550 mm | 4300 mm |
| Vehicle Width | 1780 mm | 1680 mm |
| Vehicle Height | 1430 mm | 1280 mm |
| Wheelbase Size | 2660 mm | 2430 mm |
| Fuel Tank Capacity | 70 L | 65 L |
