1971 Ford Zephyr vs. 2004 Pontiac Grand Prix
To start off, 2004 Pontiac Grand Prix is newer by 33 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 5,326 cc (8 cylinders), 2004 Pontiac Grand Prix is equipped with a bigger engine. In terms of performance, 2004 Pontiac Grand Prix (290 HP @ 5200 RPM) has 209 more horse power than 1971 Ford Zephyr. (81 HP @ 4750 RPM) In normal driving conditions, 2004 Pontiac Grand Prix should accelerate faster than 1971 Ford Zephyr. With that said, vehicle weight also plays an important factor in acceleration. 2004 Pontiac Grand Prix weights approximately 435 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 1971 Ford Zephyr is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 1971 Ford Zephyr. However, in wet, icy, snow, or gravel driving conditions, 2004 Pontiac Grand Prix, being front wheel drive (FWD), will offer much better control with better grip. 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, 2004 Pontiac Grand Prix (441 Nm @ 4000 RPM) has 288 more torque (in Nm) than 1971 Ford Zephyr. (153 Nm @ 2750 RPM). This means 2004 Pontiac Grand Prix will have an easier job in driving up hills or pulling heavy equipment than 1971 Ford Zephyr.
Compare all specifications:
| 1971 Ford Zephyr | 2004 Pontiac Grand Prix | |
| Make | Ford | Pontiac |
| Model | Zephyr | Grand Prix |
| Year Released | 1971 | 2004 |
| Engine Position | Front | Front |
| Engine Size | 1996 cc | 5326 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 81 HP | 290 HP |
| Engine RPM | 4750 RPM | 5200 RPM |
| Torque | 153 Nm | 441 Nm |
| Torque RPM | 2750 RPM | 4000 RPM |
| Engine Bore Size | 93.7 mm | 96 mm |
| Engine Stroke Size | 72.4 mm | 92 mm |
| Drive Type | Rear | Front |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Weight | 1250 kg | 1685 kg |
| Vehicle Length | 4710 mm | 5060 mm |
| Vehicle Width | 1820 mm | 1880 mm |
| Vehicle Height | 1490 mm | 1420 mm |
| Wheelbase Size | 2930 mm | 2760 mm |
