1972 AC 428 vs. 1999 Porsche 911
To start off, 1999 Porsche 911 is newer by 27 year(s). Which means there will be less support and parts availability for 1972 AC 428. In addition, the cost of maintenance, including insurance, on 1972 AC 428 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 2 more horse power than 1999 Porsche 911. (296 HP @ 6000 RPM). In normal driving conditions, 1972 AC 428 should accelerate faster than 1999 Porsche 911.
Because 1999 Porsche 911 is four wheel drive (4WD), it will have significant more traction and grip than 1972 AC 428. In wet, icy, snow, or gravel driving conditions, 1999 Porsche 911 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, 1972 AC 428 (639 Nm) has 289 more torque (in Nm) than 1999 Porsche 911. (350 Nm). This means 1972 AC 428 will have an easier job in driving up hills or pulling heavy equipment than 1999 Porsche 911.
Compare all specifications:
| 1972 AC 428 | 1999 Porsche 911 | |
| Make | AC | Porsche |
| Model | 428 | 911 |
| Year Released | 1972 | 1999 |
| Engine Position | Front | Rear |
| Engine Size | 7003 cc | 3387 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | in-line | boxer |
| Horse Power | 298 HP | 296 HP |
| Engine RPM | 4600 RPM | 6000 RPM |
| Torque | 639 Nm | 350 Nm |
| Drive Type | Rear | 4WD |
| Transmission Type | Manual | Manual |
| Number of Seats | 2 seats | 2 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Length | 4430 mm | 4440 mm |
| Vehicle Width | 1710 mm | 1770 mm |
| Vehicle Height | 1310 mm | 1320 mm |
| Wheelbase Size | 2450 mm | 2360 mm |
