1975 AC 428 vs. 1991 Audi 100
To start off, 1991 Audi 100 is newer by 16 year(s). Which means there will be less support and parts availability for 1975 AC 428. In addition, the cost of maintenance, including insurance, on 1975 AC 428 would be higher. At 7,003 cc (8 cylinders), 1975 AC 428 is equipped with a bigger engine. In terms of performance, 1975 AC 428 (298 HP @ 4600 RPM) has 184 more horse power than 1991 Audi 100. (114 HP @ 4250 RPM). In normal driving conditions, 1975 AC 428 should accelerate faster than 1991 Audi 100. With that said, vehicle weight also plays an important factor in acceleration. 1975 AC 428 weights approximately 5 kg more than 1991 Audi 100. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1975 AC 428 is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 1975 AC 428. However, in wet, icy, snow, or gravel driving conditions, 1991 Audi 100, being front wheel drive (FWD), will offer much better control with better grip. 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, 1975 AC 428 (639 Nm @ 2800 RPM) has 374 more torque (in Nm) than 1991 Audi 100. (265 Nm @ 2250 RPM). This means 1975 AC 428 will have an easier job in driving up hills or pulling heavy equipment than 1991 Audi 100.
Compare all specifications:
| 1975 AC 428 | 1991 Audi 100 | |
| Make | AC | Audi |
| Model | 428 | 100 |
| Year Released | 1975 | 1991 |
| Engine Position | Front | Front |
| Engine Size | 7003 cc | 2460 cc |
| Engine Cylinders | 8 cylinders | 5 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 298 HP | 114 HP |
| Engine RPM | 4600 RPM | 4250 RPM |
| Torque | 639 Nm | 265 Nm |
| Torque RPM | 2800 RPM | 2250 RPM |
| Fuel Type | Gasoline | Diesel |
| Drive Type | Rear | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 2 seats | 5 seats |
| Vehicle Weight | 1430 kg | 1425 kg |
| Vehicle Length | 4430 mm | 4800 mm |
| Vehicle Width | 1710 mm | 1780 mm |
| Vehicle Height | 1310 mm | 1450 mm |
