1972 AC 428 vs. 1968 Vauxhall Viva
To start off, 1972 AC 428 is newer by 4 year(s). Which means there will be less support and parts availability for 1968 Vauxhall Viva. In addition, the cost of maintenance, including insurance, on 1968 Vauxhall Viva would be higher. At 7,003 cc (8 cylinders), 1972 AC 428 is equipped with a bigger engine. In terms of performance, 1972 AC 428 (298 HP @ 4600 RPM) has 194 more horse power than 1968 Vauxhall Viva. (104 HP @ 5600 RPM). In normal driving conditions, 1972 AC 428 should accelerate faster than 1968 Vauxhall Viva. With that said, vehicle weight also plays an important factor in acceleration. 1972 AC 428 weights approximately 509 kg more than 1968 Vauxhall Viva. 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, 1972 AC 428 (639 Nm @ 2800 RPM) has 480 more torque (in Nm) than 1968 Vauxhall Viva. (159 Nm @ 3400 RPM). This means 1972 AC 428 will have an easier job in driving up hills or pulling heavy equipment than 1968 Vauxhall Viva.
Compare all specifications:
| 1972 AC 428 | 1968 Vauxhall Viva | |
| Make | AC | Vauxhall |
| Model | 428 | Viva |
| Year Released | 1972 | 1968 |
| Engine Position | Front | Front |
| Engine Size | 7003 cc | 1975 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 298 HP | 104 HP |
| Engine RPM | 4600 RPM | 5600 RPM |
| Torque | 639 Nm | 159 Nm |
| Torque RPM | 2800 RPM | 3400 RPM |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 2 seats | 5 seats |
| Vehicle Weight | 1434 kg | 925 kg |
| Vehicle Length | 4430 mm | 4100 mm |
| Vehicle Width | 1710 mm | 1610 mm |
| Vehicle Height | 1310 mm | 1350 mm |
| Wheelbase Size | 2450 mm | 2440 mm |
