1973 AC 428 vs. 1999 Porsche 911
To start off, 1999 Porsche 911 is newer by 26 year(s). Which means there will be less support and parts availability for 1973 AC 428. In addition, the cost of maintenance, including insurance, on 1973 AC 428 would be higher. At 7,002 cc (8 cylinders), 1973 AC 428 is equipped with a bigger engine. In terms of performance, 1973 AC 428 (298 HP) has 2 more horse power than 1999 Porsche 911. (296 HP). In normal driving conditions, 1973 AC 428 should accelerate faster than 1999 Porsche 911. With that said, vehicle weight also plays an important factor in acceleration. 1973 AC 428 weights approximately 110 kg more than 1999 Porsche 911. 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, 1973 AC 428 (639 Nm) has 289 more torque (in Nm) than 1999 Porsche 911. (350 Nm). This means 1973 AC 428 will have an easier job in driving up hills or pulling heavy equipment than 1999 Porsche 911.
Compare all specifications:
| 1973 AC 428 | 1999 Porsche 911 | |
| Make | AC | Porsche |
| Model | 428 | 911 |
| Year Released | 1973 | 1999 |
| Engine Position | Front | Rear |
| Engine Size | 7002 cc | 3387 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | in-line | boxer |
| Horse Power | 298 HP | 296 HP |
| Torque | 639 Nm | 350 Nm |
| 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 | 1320 kg |
| Vehicle Length | 4430 mm | 4430 mm |
| Vehicle Width | 1710 mm | 1780 mm |
| Vehicle Height | 1310 mm | 1300 mm |
| Wheelbase Size | 2450 mm | 2340 mm |
