2004 Dodge Viper vs. 1991 Mazda RX-7
To start off, 2004 Dodge Viper is newer by 13 year(s). Which means there will be less support and parts availability for 1991 Mazda RX-7. In addition, the cost of maintenance, including insurance, on 1991 Mazda RX-7 would be higher. At 7,988 cc (10 cylinders), 2004 Dodge Viper is equipped with a bigger engine. In terms of performance, 2004 Dodge Viper (500 HP @ 5600 RPM) has 303 more horse power than 1991 Mazda RX-7. (197 HP @ 6500 RPM). In normal driving conditions, 2004 Dodge Viper should accelerate faster than 1991 Mazda RX-7. With that said, vehicle weight also plays an important factor in acceleration. 2004 Dodge Viper weights approximately 221 kg more than 1991 Mazda RX-7. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are rear wheel drive (RWD) - it offers better handling in dry conditions; in addition, if you are looking to drift, both vehicles do the job better than front wheel drive vehicles. 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 Dodge Viper (712 Nm @ 4200 RPM) has 442 more torque (in Nm) than 1991 Mazda RX-7. (270 Nm @ 3500 RPM). This means 2004 Dodge Viper will have an easier job in driving up hills or pulling heavy equipment than 1991 Mazda RX-7.
Compare all specifications:
| 2004 Dodge Viper | 1991 Mazda RX-7 | |
| Make | Dodge | Mazda |
| Model | Viper | RX-7 |
| Year Released | 2004 | 1991 |
| Body Type | Roadster | Convertible |
| Engine Position | Front | Front |
| Engine Size | 7988 cc | 2616 cc |
| Engine Type | V | dual-disk rotary |
| Horse Power | 500 HP | 197 HP |
| Engine RPM | 5600 RPM | 6500 RPM |
| Torque | 712 Nm | 270 Nm |
| Torque RPM | 4200 RPM | 3500 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 2 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1523 kg | 1302 kg |
| Vehicle Length | 4470 mm | 4320 mm |
| Vehicle Width | 1950 mm | 1700 mm |
| Vehicle Height | 1220 mm | 1270 mm |
| Wheelbase Size | 2520 mm | 2430 mm |
| Fuel Tank Capacity | 70 L | 75 L |
