1971 AC 428 vs. 1977 Fiat 127
To start off, 1977 Fiat 127 is newer by 6 year(s). Which means there will be less support and parts availability for 1971 AC 428. In addition, the cost of maintenance, including insurance, on 1971 AC 428 would be higher. At 7,003 cc (8 cylinders), 1971 AC 428 is equipped with a bigger engine. In terms of performance, 1971 AC 428 (298 HP @ 4600 RPM) has 254 more horse power than 1977 Fiat 127. (44 HP @ 5600 RPM). In normal driving conditions, 1971 AC 428 should accelerate faster than 1977 Fiat 127. With that said, vehicle weight also plays an important factor in acceleration. 1971 AC 428 weights approximately 725 kg more than 1977 Fiat 127. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1971 AC 428 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 AC 428. However, in wet, icy, snow, or gravel driving conditions, 1977 Fiat 127, 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, 1971 AC 428 (639 Nm @ 2800 RPM) has 575 more torque (in Nm) than 1977 Fiat 127. (64 Nm @ 3000 RPM). This means 1971 AC 428 will have an easier job in driving up hills or pulling heavy equipment than 1977 Fiat 127.
Compare all specifications:
| 1971 AC 428 | 1977 Fiat 127 | |
| Make | AC | Fiat |
| Model | 428 | 127 |
| Year Released | 1971 | 1977 |
| Engine Position | Front | Front |
| Engine Size | 7003 cc | 903 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 298 HP | 44 HP |
| Engine RPM | 4600 RPM | 5600 RPM |
| Torque | 639 Nm | 64 Nm |
| Torque RPM | 2800 RPM | 3000 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Front |
| Transmission Type | Manual | Manual |
| Vehicle Weight | 1430 kg | 705 kg |
| Vehicle Length | 4430 mm | 3650 mm |
| Vehicle Width | 1710 mm | 1530 mm |
| Vehicle Height | 1310 mm | 1370 mm |
| Wheelbase Size | 2450 mm | 2230 mm |
