2005 Audi A4 vs. 1981 Mazda RX-7
To start off, 2005 Audi A4 is newer by 24 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 2,496 cc (6 cylinders), 2005 Audi A4 is equipped with a bigger engine. In terms of performance, 2005 Audi A4 (177 HP @ 1500 RPM) has 73 more horse power than 1981 Mazda RX-7. (104 HP @ 6000 RPM). In normal driving conditions, 2005 Audi A4 should accelerate faster than 1981 Mazda RX-7. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi A4 weights approximately 530 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 2005 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, 2005 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, 2005 Audi A4 (371 Nm @ 1500 RPM) has 226 more torque (in Nm) than 1981 Mazda RX-7. (145 Nm @ 4000 RPM). This means 2005 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 1981 Mazda RX-7. 2005 Audi A4 has automatic transmission and 1981 Mazda RX-7 has manual transmission. 1981 Mazda RX-7 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2005 Audi A4 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2005 Audi A4 | 1981 Mazda RX-7 | |
| Make | Audi | Mazda |
| Model | A4 | RX-7 |
| Year Released | 2005 | 1981 |
| Body Type | Sedan | Coupe |
| Engine Position | Front | Front |
| Engine Size | 2496 cc | 2292 cc |
| Engine Type | V | dual-disk rotary |
| Horse Power | 177 HP | 104 HP |
| Engine RPM | 1500 RPM | 6000 RPM |
| Torque | 371 Nm | 145 Nm |
| Torque RPM | 1500 RPM | 4000 RPM |
| Fuel Type | Diesel | Gasoline |
| Top Speed | 225 km/hour | 188 km/hour |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Manual |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1590 kg | 1060 kg |
| Vehicle Length | 4550 mm | 4300 mm |
| Vehicle Width | 1780 mm | 1680 mm |
| Vehicle Height | 1430 mm | 1280 mm |
| Wheelbase Size | 2770 mm | 2430 mm |
| Fuel Tank Capacity | 66 L | 65 L |
