2007 GMC Sierra vs. 1979 Mazda RX-7
To start off, 2007 GMC Sierra is newer by 28 year(s). Which means there will be less support and parts availability for 1979 Mazda RX-7. In addition, the cost of maintenance, including insurance, on 1979 Mazda RX-7 would be higher. At 6,172 cc (8 cylinders), 2007 GMC Sierra is equipped with a bigger engine. In terms of performance, 2007 GMC Sierra (403 HP @ 5700 RPM) has 299 more horse power than 1979 Mazda RX-7. (104 HP @ 6000 RPM). In normal driving conditions, 2007 GMC Sierra should accelerate faster than 1979 Mazda RX-7. With that said, vehicle weight also plays an important factor in acceleration. 2007 GMC Sierra weights approximately 1418 kg more than 1979 Mazda RX-7. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2007 GMC Sierra is four wheel drive (4WD), it will have significant more traction and grip than 1979 Mazda RX-7. In wet, icy, snow, or gravel driving conditions, 2007 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, 2007 GMC Sierra (565 Nm @ 4300 RPM) has 420 more torque (in Nm) than 1979 Mazda RX-7. (145 Nm @ 4000 RPM). This means 2007 GMC Sierra will have an easier job in driving up hills or pulling heavy equipment than 1979 Mazda RX-7. 2007 GMC Sierra has automatic transmission and 1979 Mazda RX-7 has manual transmission. 1979 Mazda RX-7 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2007 GMC Sierra will be easier to drive especially in heavy traffic.
Compare all specifications:
2007 GMC Sierra | 1979 Mazda RX-7 | |
Make | GMC | Mazda |
Model | Sierra | RX-7 |
Year Released | 2007 | 1979 |
Body Type | Pickup | Coupe |
Engine Position | Front | Front |
Engine Size | 6172 cc | 2292 cc |
Engine Type | V | dual-disk rotary |
Horse Power | 403 HP | 104 HP |
Engine RPM | 5700 RPM | 6000 RPM |
Torque | 565 Nm | 145 Nm |
Torque RPM | 4300 RPM | 4000 RPM |
Drive Type | 4WD | Rear |
Transmission Type | Automatic | Manual |
Number of Doors | 4 doors | 2 doors |
Vehicle Weight | 2478 kg | 1060 kg |
Vehicle Length | 5850 mm | 4290 mm |
Vehicle Width | 2040 mm | 1680 mm |
Vehicle Height | 1880 mm | 1270 mm |
Wheelbase Size | 3650 mm | 2430 mm |
Fuel Tank Capacity | 98 L | 65 L |