1965 AC 427 vs. 1981 Fiat 127
To start off, 1981 Fiat 127 is newer by 16 year(s). Which means there will be less support and parts availability for 1965 AC 427. In addition, the cost of maintenance, including insurance, on 1965 AC 427 would be higher. At 6,997 cc (8 cylinders), 1965 AC 427 is equipped with a bigger engine. In terms of performance, 1965 AC 427 (410 HP @ 4000 RPM) has 361 more horse power than 1981 Fiat 127. (49 HP @ 5600 RPM). In normal driving conditions, 1965 AC 427 should accelerate faster than 1981 Fiat 127. With that said, vehicle weight also plays an important factor in acceleration. 1965 AC 427 weights approximately 567 kg more than 1981 Fiat 127. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1965 AC 427 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 1965 AC 427. However, in wet, icy, snow, or gravel driving conditions, 1981 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, 1965 AC 427 (652 Nm @ 3700 RPM) has 575 more torque (in Nm) than 1981 Fiat 127. (77 Nm @ 3000 RPM). This means 1965 AC 427 will have an easier job in driving up hills or pulling heavy equipment than 1981 Fiat 127. 1965 AC 427 has automatic transmission and 1981 Fiat 127 has manual transmission. 1981 Fiat 127 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 1965 AC 427 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1965 AC 427 | 1981 Fiat 127 | |
| Make | AC | Fiat |
| Model | 427 | 127 |
| Year Released | 1965 | 1981 |
| Engine Position | Front | Front |
| Engine Size | 6997 cc | 1049 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 410 HP | 49 HP |
| Engine RPM | 4000 RPM | 5600 RPM |
| Torque | 652 Nm | 77 Nm |
| Torque RPM | 3700 RPM | 3000 RPM |
| Engine Bore Size | 107.7 mm | 67.3 mm |
| Engine Stroke Size | 96 mm | 68 mm |
| Drive Type | Rear | Front |
| Transmission Type | Automatic | Manual |
| Number of Seats | 2 seats | 4 seats |
| Vehicle Weight | 1397 kg | 830 kg |
| Vehicle Length | 4430 mm | 3930 mm |
| Vehicle Width | 1710 mm | 1550 mm |
| Vehicle Height | 1300 mm | 1430 mm |
| Wheelbase Size | 2440 mm | 2230 mm |
