2006 Audi A4 vs. 1975 AC 428
To start off, 2006 Audi A4 is newer by 31 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 98 more horse power than 2006 Audi A4. (200 HP @ 5100 RPM) In normal driving conditions, 1975 AC 428 should accelerate faster than 2006 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2006 Audi A4 weights approximately 450 kg more than 1975 AC 428.
Because 2006 Audi A4 is four wheel drive (4WD), it will have significant more traction and grip than 1975 AC 428. In wet, icy, snow, or gravel driving conditions, 2006 Audi A4 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, 1975 AC 428 (639 Nm @ 2800 RPM) has 358 more torque (in Nm) than 2006 Audi A4. (281 Nm @ 1800 RPM). This means 1975 AC 428 will have an easier job in driving up hills or pulling heavy equipment than 2006 Audi A4.
Compare all specifications:
| 2006 Audi A4 | 1975 AC 428 | |
| Make | Audi | AC |
| Model | A4 | 428 |
| Year Released | 2006 | 1975 |
| Engine Position | Front | Front |
| Engine Size | 1983 cc | 7003 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 200 HP | 298 HP |
| Engine RPM | 5100 RPM | 4600 RPM |
| Torque | 281 Nm | 639 Nm |
| Torque RPM | 1800 RPM | 2800 RPM |
| Drive Type | 4WD | Rear |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1880 kg | 1430 kg |
| Vehicle Length | 4590 mm | 4430 mm |
| Vehicle Width | 1780 mm | 1710 mm |
| Vehicle Height | 1430 mm | 1310 mm |
| Wheelbase Size | 2660 mm | 2450 mm |
