1991 Mazda RX-7 vs. 2004 Mercedes-Benz C
To start off, 2004 Mercedes-Benz C 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 5,439 cc (8 cylinders), 2004 Mercedes-Benz C is equipped with a bigger engine. In terms of performance, 2004 Mercedes-Benz C (361 HP @ 5750 RPM) has 164 more horse power than 1991 Mazda RX-7. (197 HP @ 6500 RPM) In normal driving conditions, 2004 Mercedes-Benz C should accelerate faster than 1991 Mazda RX-7. With that said, vehicle weight also plays an important factor in acceleration. 2004 Mercedes-Benz C weights approximately 333 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 Mercedes-Benz C (510 Nm @ 4000 RPM) has 240 more torque (in Nm) than 1991 Mazda RX-7. (270 Nm @ 3500 RPM). This means 2004 Mercedes-Benz C will have an easier job in driving up hills or pulling heavy equipment than 1991 Mazda RX-7. 2004 Mercedes-Benz C has automatic transmission and 1991 Mazda RX-7 has manual transmission. 1991 Mazda RX-7 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2004 Mercedes-Benz C will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1991 Mazda RX-7 | 2004 Mercedes-Benz C | |
| Make | Mazda | Mercedes-Benz |
| Model | RX-7 | C |
| Year Released | 1991 | 2004 |
| Body Type | Convertible | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2616 cc | 5439 cc |
| Engine Type | dual-disk rotary | V |
| Horse Power | 197 HP | 361 HP |
| Engine RPM | 6500 RPM | 5750 RPM |
| Torque | 270 Nm | 510 Nm |
| Torque RPM | 3500 RPM | 4000 RPM |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1302 kg | 1635 kg |
| Vehicle Length | 4320 mm | 4620 mm |
| Vehicle Width | 1700 mm | 1750 mm |
| Vehicle Height | 1270 mm | 1420 mm |
| Wheelbase Size | 2430 mm | 2720 mm |
| Fuel Tank Capacity | 75 L | 62 L |
