1971 AC 428 vs. 1997 Porsche 911
To start off, 1997 Porsche 911 is newer by 26 year(s). Which means there will be less support and parts availability for 1971 AC 428. In addition, the cost of maintenance, including insurance, on 1971 AC 428 would be higher. At 7,003 cc (8 cylinders), 1971 AC 428 is equipped with a bigger engine. In terms of performance, 1997 Porsche 911 (424 HP @ 5750 RPM) has 126 more horse power than 1971 AC 428. (298 HP @ 4600 RPM) In normal driving conditions, 1997 Porsche 911 should accelerate faster than 1971 AC 428. With that said, vehicle weight also plays an important factor in acceleration. 1971 AC 428 weights approximately 135 kg more than 1997 Porsche 911.
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, 1971 AC 428 (639 Nm @ 2800 RPM) has 109 more torque (in Nm) than 1997 Porsche 911. (530 Nm @ 4500 RPM). This means 1971 AC 428 will have an easier job in driving up hills or pulling heavy equipment than 1997 Porsche 911.
Compare all specifications:
| 1971 AC 428 | 1997 Porsche 911 | |
| Make | AC | Porsche |
| Model | 428 | 911 |
| Year Released | 1971 | 1997 |
| Engine Position | Front | Rear |
| Engine Size | 7003 cc | 3600 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | in-line | boxer |
| Horse Power | 298 HP | 424 HP |
| Engine RPM | 4600 RPM | 5750 RPM |
| Torque | 639 Nm | 530 Nm |
| Torque RPM | 2800 RPM | 4500 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 2 seats | 2 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1430 kg | 1295 kg |
| Vehicle Length | 4430 mm | 4270 mm |
| Vehicle Width | 1710 mm | 1740 mm |
| Vehicle Height | 1310 mm | 1320 mm |
| Wheelbase Size | 2450 mm | 2280 mm |
