2004 Audi A6 vs. 1978 Mazda RX-7
To start off, 2004 Audi A6 is newer by 26 year(s). Which means there will be less support and parts availability for 1978 Mazda RX-7. In addition, the cost of maintenance, including insurance, on 1978 Mazda RX-7 would be higher. At 2,292 cc, 1978 Mazda RX-7 is equipped with a bigger engine. In terms of performance, 2004 Audi A6 (138 HP @ 4000 RPM) has 33 more horse power than 1978 Mazda RX-7. (105 HP @ 6000 RPM). In normal driving conditions, 2004 Audi A6 should accelerate faster than 1978 Mazda RX-7. With that said, vehicle weight also plays an important factor in acceleration. 2004 Audi A6 weights approximately 480 kg more than 1978 Mazda RX-7. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1978 Mazda RX-7 is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 1978 Mazda RX-7. However, in wet, icy, snow, or gravel driving conditions, 2004 Audi A6, being front wheel drive (FWD), will offer much better control with better grip. 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, 2004 Audi A6 (320 Nm @ 1750 RPM) has 175 more torque (in Nm) than 1978 Mazda RX-7. (145 Nm @ 4000 RPM). This means 2004 Audi A6 will have an easier job in driving up hills or pulling heavy equipment than 1978 Mazda RX-7.
Compare all specifications:
| 2004 Audi A6 | 1978 Mazda RX-7 | |
| Make | Audi | Mazda |
| Model | A6 | RX-7 |
| Year Released | 2004 | 1978 |
| Body Type | Sedan | Coupe |
| Engine Position | Front | Front |
| Engine Size | 1968 cc | 2292 cc |
| Engine Type | in-line | dual-disk rotary |
| Horse Power | 138 HP | 105 HP |
| Engine RPM | 4000 RPM | 6000 RPM |
| Torque | 320 Nm | 145 Nm |
| Torque RPM | 1750 RPM | 4000 RPM |
| Engine Compression Ratio | 19.5:1 | 9.4:1 |
| Fuel Type | Diesel | Gasoline |
| Top Speed | 205 km/hour | 185 km/hour |
| Drive Type | Front | Rear |
| Transmission Type | Manual | Manual |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1540 kg | 1060 kg |
| Vehicle Length | 4920 mm | 4290 mm |
| Vehicle Width | 1860 mm | 1680 mm |
| Vehicle Height | 1470 mm | 1280 mm |
| Wheelbase Size | 2850 mm | 2430 mm |
| Fuel Tank Capacity | 70 L | 65 L |
