2005 Audi S4 vs. 1990 Mazda RX-7
To start off, 2005 Audi S4 is newer by 15 year(s). Which means there will be less support and parts availability for 1990 Mazda RX-7. In addition, the cost of maintenance, including insurance, on 1990 Mazda RX-7 would be higher. At 4,163 cc (8 cylinders), 2005 Audi S4 is equipped with a bigger engine. In terms of performance, 2005 Audi S4 (339 HP @ 7000 RPM) has 142 more horse power than 1990 Mazda RX-7. (197 HP @ 6500 RPM). In normal driving conditions, 2005 Audi S4 should accelerate faster than 1990 Mazda RX-7. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi S4 weights approximately 495 kg more than 1990 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 S4 is four wheel drive (4WD), it will have significant more traction and grip than 1990 Mazda RX-7. In wet, icy, snow, or gravel driving conditions, 2005 Audi S4 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 S4 (410 Nm @ 3500 RPM) has 140 more torque (in Nm) than 1990 Mazda RX-7. (270 Nm @ 3500 RPM). This means 2005 Audi S4 will have an easier job in driving up hills or pulling heavy equipment than 1990 Mazda RX-7.
Compare all specifications:
| 2005 Audi S4 | 1990 Mazda RX-7 | |
| Make | Audi | Mazda |
| Model | S4 | RX-7 |
| Year Released | 2005 | 1990 |
| Body Type | Station Wagon | Convertible |
| Engine Position | Front | Front |
| Engine Size | 4163 cc | 2616 cc |
| Engine Type | V | dual-disk rotary |
| Horse Power | 339 HP | 197 HP |
| Engine RPM | 7000 RPM | 6500 RPM |
| Torque | 410 Nm | 270 Nm |
| Torque RPM | 3500 RPM | 3500 RPM |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1795 kg | 1300 kg |
| Vehicle Length | 4580 mm | 4320 mm |
| Vehicle Width | 1790 mm | 1700 mm |
| Vehicle Height | 1450 mm | 1270 mm |
| Wheelbase Size | 2660 mm | 2430 mm |
| Fuel Tank Capacity | 66 L | 75 L |
