1971 Ford Zephyr vs. 2007 GMC Sierra
To start off, 2007 GMC Sierra is newer by 36 year(s). Which means there will be less support and parts availability for 1971 Ford Zephyr. In addition, the cost of maintenance, including insurance, on 1971 Ford Zephyr 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 322 more horse power than 1971 Ford Zephyr. (81 HP @ 4750 RPM) In normal driving conditions, 2007 GMC Sierra should accelerate faster than 1971 Ford Zephyr. With that said, vehicle weight also plays an important factor in acceleration. 2007 GMC Sierra weights approximately 1228 kg more than 1971 Ford Zephyr. 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 1971 Ford Zephyr. 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 412 more torque (in Nm) than 1971 Ford Zephyr. (153 Nm @ 2750 RPM). This means 2007 GMC Sierra will have an easier job in driving up hills or pulling heavy equipment than 1971 Ford Zephyr.
Compare all specifications:
| 1971 Ford Zephyr | 2007 GMC Sierra | |
| Make | Ford | GMC |
| Model | Zephyr | Sierra |
| Year Released | 1971 | 2007 |
| Engine Position | Front | Front |
| Engine Size | 1996 cc | 6172 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 81 HP | 403 HP |
| Engine RPM | 4750 RPM | 5700 RPM |
| Torque | 153 Nm | 565 Nm |
| Torque RPM | 2750 RPM | 4300 RPM |
| Drive Type | Rear | 4WD |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Weight | 1250 kg | 2478 kg |
| Vehicle Length | 4710 mm | 5850 mm |
| Vehicle Width | 1820 mm | 2040 mm |
| Vehicle Height | 1490 mm | 1880 mm |
| Wheelbase Size | 2930 mm | 3650 mm |
