1971 AC 428 vs. 1991 Audi 100
To start off, 1991 Audi 100 is newer by 20 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, 1971 AC 428 (298 HP @ 4600 RPM) has 127 more horse power than 1991 Audi 100. (171 HP @ 5500 RPM). In normal driving conditions, 1971 AC 428 should accelerate faster than 1991 Audi 100. With that said, vehicle weight also plays an important factor in acceleration. 1991 Audi 100 weights approximately 70 kg more than 1971 AC 428.
Because 1991 Audi 100 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, 1991 Audi 100 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 388 more torque (in Nm) than 1991 Audi 100. (251 Nm @ 3000 RPM). This means 1971 AC 428 will have an easier job in driving up hills or pulling heavy equipment than 1991 Audi 100.
Compare all specifications:
| 1971 AC 428 | 1991 Audi 100 | |
| Make | AC | Audi |
| Model | 428 | 100 |
| Year Released | 1971 | 1991 |
| Engine Position | Front | Front |
| Engine Size | 7003 cc | 2771 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Horse Power | 298 HP | 171 HP |
| Engine RPM | 4600 RPM | 5500 RPM |
| Torque | 639 Nm | 251 Nm |
| Torque RPM | 2800 RPM | 3000 RPM |
| Drive Type | Rear | 4WD |
| Transmission Type | Manual | Manual |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1430 kg | 1500 kg |
| Vehicle Length | 4430 mm | 4800 mm |
| Vehicle Width | 1710 mm | 1780 mm |
| Vehicle Height | 1310 mm | 1450 mm |
| Wheelbase Size | 2450 mm | 2690 mm |
