1975 AC 428 vs. 1977 Holden Kingswood
To start off, 1977 Holden Kingswood is newer by 2 year(s). Which means there will be less support and parts availability for 1975 AC 428. In addition, the cost of maintenance, including insurance, on 1975 AC 428 would be higher. At 7,003 cc (8 cylinders), 1975 AC 428 is equipped with a bigger engine. In terms of performance, 1975 AC 428 (298 HP @ 4600 RPM) has 140 more horse power than 1977 Holden Kingswood. (158 HP @ 4550 RPM). In normal driving conditions, 1975 AC 428 should accelerate faster than 1977 Holden Kingswood. With that said, vehicle weight also plays an important factor in acceleration. 1975 AC 428 weights approximately 50 kg more than 1977 Holden Kingswood. 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, 1975 AC 428 (639 Nm @ 2800 RPM) has 313 more torque (in Nm) than 1977 Holden Kingswood. (326 Nm @ 2600 RPM). This means 1975 AC 428 will have an easier job in driving up hills or pulling heavy equipment than 1977 Holden Kingswood.
Compare all specifications:
| 1975 AC 428 | 1977 Holden Kingswood | |
| Make | AC | Holden |
| Model | 428 | Kingswood |
| Year Released | 1975 | 1977 |
| Engine Position | Front | Front |
| Engine Size | 7003 cc | 4141 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 298 HP | 158 HP |
| Engine RPM | 4600 RPM | 4550 RPM |
| Torque | 639 Nm | 326 Nm |
| Torque RPM | 2800 RPM | 2600 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Automatic |
| Vehicle Weight | 1430 kg | 1380 kg |
| Vehicle Length | 4430 mm | 4850 mm |
| Vehicle Width | 1710 mm | 1900 mm |
| Vehicle Height | 1310 mm | 1410 mm |
| Wheelbase Size | 2450 mm | 2830 mm |
