2004 Audi A4 vs. 1975 AC 428
To start off, 2004 Audi A4 is newer by 29 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 78 more horse power than 2004 Audi A4. (220 HP @ 4000 RPM) In normal driving conditions, 1975 AC 428 should accelerate faster than 2004 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2004 Audi A4 weights approximately 240 kg more than 1975 AC 428.
Because 2004 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, 2004 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) has 339 more torque (in Nm) than 2004 Audi A4. (300 Nm). This means 1975 AC 428 will have an easier job in driving up hills or pulling heavy equipment than 2004 Audi A4. 1975 AC 428 has automatic transmission and 2004 Audi A4 has manual transmission. 2004 Audi A4 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 1975 AC 428 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2004 Audi A4 | 1975 AC 428 | |
| Make | Audi | AC |
| Model | A4 | 428 |
| Year Released | 2004 | 1975 |
| Engine Position | Front | Front |
| Engine Size | 2974 cc | 7003 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | in-line |
| Horse Power | 220 HP | 298 HP |
| Engine RPM | 4000 RPM | 4600 RPM |
| Torque | 300 Nm | 639 Nm |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1670 kg | 1430 kg |
| Vehicle Length | 4550 mm | 4430 mm |
| Vehicle Width | 1770 mm | 1710 mm |
| Vehicle Height | 1430 mm | 1310 mm |
| Wheelbase Size | 2660 mm | 2450 mm |
