2006 GMC Sierra vs. 1990 Mazda RX-7
To start off, 2006 GMC Sierra is newer by 16 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 4,293 cc (6 cylinders), 2006 GMC Sierra is equipped with a bigger engine. In terms of performance, 1990 Mazda RX-7 (197 HP @ 6500 RPM) has 2 more horse power than 2006 GMC Sierra. (195 HP @ 4600 RPM) In normal driving conditions, 1990 Mazda RX-7 should accelerate faster than 2006 GMC Sierra. With that said, vehicle weight also plays an important factor in acceleration. 2006 GMC Sierra weights approximately 1017 kg more than 1990 Mazda RX-7.
Because 2006 GMC Sierra 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, 2006 GMC Sierra 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, 2006 GMC Sierra (353 Nm @ 2800 RPM) has 83 more torque (in Nm) than 1990 Mazda RX-7. (270 Nm @ 3500 RPM). This means 2006 GMC Sierra will have an easier job in driving up hills or pulling heavy equipment than 1990 Mazda RX-7.
Compare all specifications:
| 2006 GMC Sierra | 1990 Mazda RX-7 | |
| Make | GMC | Mazda |
| Model | Sierra | RX-7 |
| Year Released | 2006 | 1990 |
| Body Type | Pickup | Convertible |
| Engine Position | Front | Front |
| Engine Size | 4293 cc | 2616 cc |
| Engine Type | V | dual-disk rotary |
| Horse Power | 195 HP | 197 HP |
| Engine RPM | 4600 RPM | 6500 RPM |
| Torque | 353 Nm | 270 Nm |
| Torque RPM | 2800 RPM | 3500 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | 4WD | Rear |
| Number of Seats | 3 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 2317 kg | 1300 kg |
| Vehicle Length | 5710 mm | 4320 mm |
| Vehicle Width | 2000 mm | 1700 mm |
| Vehicle Height | 1810 mm | 1270 mm |
| Wheelbase Size | 3380 mm | 2430 mm |
| Fuel Tank Capacity | 129 L | 75 L |
