1963 Austin A 99 vs. 1975 AC 428
To start off, 1975 AC 428 is newer by 12 year(s). Which means there will be less support and parts availability for 1963 Austin A 99. In addition, the cost of maintenance, including insurance, on 1963 Austin A 99 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 191 more horse power than 1963 Austin A 99. (107 HP @ 4750 RPM) In normal driving conditions, 1975 AC 428 should accelerate faster than 1963 Austin A 99. With that said, vehicle weight also plays an important factor in acceleration. 1963 Austin A 99 weights approximately 100 kg more than 1975 AC 428.
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 415 more torque (in Nm) than 1963 Austin A 99. (224 Nm @ 2500 RPM). This means 1975 AC 428 will have an easier job in driving up hills or pulling heavy equipment than 1963 Austin A 99. 1975 AC 428 has automatic transmission and 1963 Austin A 99 has manual transmission. 1963 Austin A 99 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 1975 AC 428 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1963 Austin A 99 | 1975 AC 428 | |
| Make | Austin | AC |
| Model | A 99 | 428 |
| Year Released | 1963 | 1975 |
| Engine Position | Front | Front |
| Engine Size | 2912 cc | 7003 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 107 HP | 298 HP |
| Engine RPM | 4750 RPM | 4600 RPM |
| Torque | 224 Nm | 639 Nm |
| Torque RPM | 2500 RPM | 2800 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1530 kg | 1430 kg |
| Vehicle Length | 4780 mm | 4430 mm |
| Vehicle Width | 1750 mm | 1710 mm |
| Vehicle Height | 1540 mm | 1310 mm |
| Wheelbase Size | 2800 mm | 2450 mm |
