1972 AC 428 vs. 1991 Audi S2
To start off, 1991 Audi S2 is newer by 19 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 82 more horse power than 1991 Audi S2. (216 HP @ 5900 RPM). In normal driving conditions, 1972 AC 428 should accelerate faster than 1991 Audi S2. With that said, vehicle weight also plays an important factor in acceleration. 1972 AC 428 weights approximately 14 kg more than 1991 Audi S2. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1991 Audi S2 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, 1991 Audi S2 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 @ 2800 RPM) has 330 more torque (in Nm) than 1991 Audi S2. (309 Nm @ 1950 RPM). This means 1972 AC 428 will have an easier job in driving up hills or pulling heavy equipment than 1991 Audi S2.
Compare all specifications:
| 1972 AC 428 | 1991 Audi S2 | |
| Make | AC | Audi |
| Model | 428 | S2 |
| Year Released | 1972 | 1991 |
| Engine Position | Front | Front |
| Engine Size | 7003 cc | 2226 cc |
| Engine Cylinders | 8 cylinders | 5 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 298 HP | 216 HP |
| Engine RPM | 4600 RPM | 5900 RPM |
| Torque | 639 Nm | 309 Nm |
| Torque RPM | 2800 RPM | 1950 RPM |
| Drive Type | Rear | 4WD |
| Transmission Type | Manual | Manual |
| Number of Seats | 2 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1434 kg | 1420 kg |
| Vehicle Length | 4430 mm | 4410 mm |
| Vehicle Width | 1710 mm | 1720 mm |
| Vehicle Height | 1310 mm | 1380 mm |
| Wheelbase Size | 2450 mm | 2560 mm |
