1991 Infiniti Q45 vs. 1989 Mazda RX-7
To start off, 1991 Infiniti Q45 is newer by 2 year(s). Which means there will be less support and parts availability for 1989 Mazda RX-7. In addition, the cost of maintenance, including insurance, on 1989 Mazda RX-7 would be higher. At 4,494 cc (8 cylinders), 1991 Infiniti Q45 is equipped with a bigger engine. In terms of performance, 1991 Infiniti Q45 (277 HP @ 6000 RPM) has 77 more horse power than 1989 Mazda RX-7. (200 HP @ 6500 RPM). In normal driving conditions, 1991 Infiniti Q45 should accelerate faster than 1989 Mazda RX-7. With that said, vehicle weight also plays an important factor in acceleration. 1991 Infiniti Q45 weights approximately 465 kg more than 1989 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, 1991 Infiniti Q45 (397 Nm @ 4000 RPM) has 133 more torque (in Nm) than 1989 Mazda RX-7. (264 Nm @ 3500 RPM). This means 1991 Infiniti Q45 will have an easier job in driving up hills or pulling heavy equipment than 1989 Mazda RX-7. 1991 Infiniti Q45 has automatic transmission and 1989 Mazda RX-7 has manual transmission. 1989 Mazda RX-7 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 1991 Infiniti Q45 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1991 Infiniti Q45 | 1989 Mazda RX-7 | |
| Make | Infiniti | Mazda |
| Model | Q45 | RX-7 |
| Year Released | 1991 | 1989 |
| Body Type | Sedan | Coupe |
| Engine Position | Front | Front |
| Engine Size | 4494 cc | 2614 cc |
| Engine Type | V | dual-disk rotary |
| Horse Power | 277 HP | 200 HP |
| Engine RPM | 6000 RPM | 6500 RPM |
| Torque | 397 Nm | 264 Nm |
| Torque RPM | 4000 RPM | 3500 RPM |
| Top Speed | 246 km/hour | 238 km/hour |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1750 kg | 1285 kg |
| Vehicle Length | 5080 mm | 4340 mm |
| Vehicle Width | 1830 mm | 1700 mm |
| Vehicle Height | 1440 mm | 1270 mm |
| Wheelbase Size | 2890 mm | 2430 mm |
