1967 AC 428 vs. 1978 Fiat 131
To start off, 1978 Fiat 131 is newer by 11 year(s). Which means there will be less support and parts availability for 1967 AC 428. In addition, the cost of maintenance, including insurance, on 1967 AC 428 would be higher. At 7,010 cc (8 cylinders), 1967 AC 428 is equipped with a bigger engine. In terms of performance, 1967 AC 428 (345 HP @ 4600 RPM) has 270 more horse power than 1978 Fiat 131. (75 HP @ 4200 RPM). In normal driving conditions, 1967 AC 428 should accelerate faster than 1978 Fiat 131. With that said, vehicle weight also plays an important factor in acceleration. 1967 AC 428 weights approximately 293 kg more than 1978 Fiat 131. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are rear wheel drive (RWD) - it offers better handling in dry conditions; in addition, if you are looking to drift, both vehicles do the job better than front wheel drive vehicles. 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, 1967 AC 428 (627 Nm @ 2800 RPM) has 483 more torque (in Nm) than 1978 Fiat 131. (144 Nm @ 2400 RPM). This means 1967 AC 428 will have an easier job in driving up hills or pulling heavy equipment than 1978 Fiat 131. 1967 AC 428 has automatic transmission and 1978 Fiat 131 has manual transmission. 1978 Fiat 131 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 1967 AC 428 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1967 AC 428 | 1978 Fiat 131 | |
| Make | AC | Fiat |
| Model | 428 | 131 |
| Year Released | 1967 | 1978 |
| Engine Position | Front | Front |
| Engine Size | 7010 cc | 2444 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 345 HP | 75 HP |
| Engine RPM | 4600 RPM | 4200 RPM |
| Torque | 627 Nm | 144 Nm |
| Torque RPM | 2800 RPM | 2400 RPM |
| Engine Bore Size | 105 mm | 93 mm |
| Engine Stroke Size | 101.2 mm | 90 mm |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Manual |
| Number of Seats | 2 seats | 5 seats |
| Vehicle Weight | 1483 kg | 1190 kg |
| Vehicle Length | 4520 mm | 4270 mm |
| Vehicle Width | 1710 mm | 1660 mm |
| Vehicle Height | 1260 mm | 1370 mm |
| Wheelbase Size | 2440 mm | 2500 mm |
