1971 AC 428 vs. 1951 Jeep CJ3A
To start off, 1971 AC 428 is newer by 20 year(s). Which means there will be less support and parts availability for 1951 Jeep CJ3A. In addition, the cost of maintenance, including insurance, on 1951 Jeep CJ3A would be higher. At 7,003 cc (8 cylinders), 1971 AC 428 is equipped with a bigger engine. In terms of performance, 1971 AC 428 (298 HP) has 239 more horse power than 1951 Jeep CJ3A. (59 HP). In normal driving conditions, 1971 AC 428 should accelerate faster than 1951 Jeep CJ3A. With that said, vehicle weight also plays an important factor in acceleration. 1971 AC 428 weights approximately 320 kg more than 1951 Jeep CJ3A. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1951 Jeep CJ3A is four wheel drive (4WD), it will have significant more traction and grip than 1971 AC 428. In wet, icy, snow, or gravel driving conditions, 1951 Jeep CJ3A will offer significantly more control. 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, 1971 AC 428 (639 Nm @ 2800 RPM) has 494 more torque (in Nm) than 1951 Jeep CJ3A. (145 Nm @ 3600 RPM). This means 1971 AC 428 will have an easier job in driving up hills or pulling heavy equipment than 1951 Jeep CJ3A.
Compare all specifications:
| 1971 AC 428 | 1951 Jeep CJ3A | |
| Make | AC | Jeep |
| Model | 428 | CJ3A |
| Year Released | 1971 | 1951 |
| Engine Position | Front | Front |
| Engine Size | 7003 cc | 2199 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 298 HP | 59 HP |
| Torque | 639 Nm | 145 Nm |
| Torque RPM | 2800 RPM | 3600 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | 4WD |
| Transmission Type | Manual | Manual |
| Vehicle Weight | 1430 kg | 1110 kg |
| Vehicle Length | 4430 mm | 3130 mm |
| Vehicle Width | 1710 mm | 1460 mm |
| Vehicle Height | 1310 mm | 1630 mm |
| Wheelbase Size | 2450 mm | 2040 mm |
