2009 Hummer H3 vs. 1991 Mazda RX-7
To start off, 2009 Hummer H3 is newer by 18 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 3,700 cc (5 cylinders), 2009 Hummer H3 is equipped with a bigger engine. In terms of performance, 2009 Hummer H3 (239 HP @ 5800 RPM) has 42 more horse power than 1991 Mazda RX-7. (197 HP @ 6500 RPM). In normal driving conditions, 2009 Hummer H3 should accelerate faster than 1991 Mazda RX-7. With that said, vehicle weight also plays an important factor in acceleration. 2009 Hummer H3 weights approximately 900 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.
Because 2009 Hummer H3 is four wheel drive (4WD), it will have significant more traction and grip than 1991 Mazda RX-7. In wet, icy, snow, or gravel driving conditions, 2009 Hummer H3 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, 2009 Hummer H3 (327 Nm @ 4600 RPM) has 57 more torque (in Nm) than 1991 Mazda RX-7. (270 Nm @ 3500 RPM). This means 2009 Hummer H3 will have an easier job in driving up hills or pulling heavy equipment than 1991 Mazda RX-7.
Compare all specifications:
| 2009 Hummer H3 | 1991 Mazda RX-7 | |
| Make | Hummer | Mazda |
| Model | H3 | RX-7 |
| Year Released | 2009 | 1991 |
| Body Type | SUV | Convertible |
| Engine Position | Front | Front |
| Engine Size | 3700 cc | 2616 cc |
| Engine Type | in-line | dual-disk rotary |
| Horse Power | 239 HP | 197 HP |
| Engine RPM | 5800 RPM | 6500 RPM |
| Torque | 327 Nm | 270 Nm |
| Torque RPM | 4600 RPM | 3500 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 2202 kg | 1302 kg |
| Vehicle Length | 4770 mm | 4320 mm |
| Vehicle Width | 2170 mm | 1700 mm |
| Vehicle Height | 1870 mm | 1270 mm |
| Wheelbase Size | 2850 mm | 2430 mm |
| Fuel Tank Capacity | 87 L | 75 L |
