2005 Audi A4 vs. 1973 AC 428
To start off, 2005 Audi A4 is newer by 32 year(s). Which means there will be less support and parts availability for 1973 AC 428. In addition, the cost of maintenance, including insurance, on 1973 AC 428 would be higher. At 7,002 cc (8 cylinders), 1973 AC 428 is equipped with a bigger engine. In terms of performance, 1973 AC 428 (298 HP @ 4600 RPM) has 81 more horse power than 2005 Audi A4. (217 HP @ 4000 RPM) In normal driving conditions, 1973 AC 428 should accelerate faster than 2005 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi A4 weights approximately 268 kg more than 1973 AC 428.
Let's talk about torque, 1973 AC 428 (639 Nm) has 339 more torque (in Nm) than 2005 Audi A4. (300 Nm). This means 1973 AC 428 will have an easier job in driving up hills or pulling heavy equipment than 2005 Audi A4.
Compare all specifications:
| 2005 Audi A4 | 1973 AC 428 | |
| Make | Audi | AC |
| Model | A4 | 428 |
| Year Released | 2005 | 1973 |
| Engine Position | Front | Front |
| Engine Size | 2976 cc | 7002 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | in-line |
| Horse Power | 217 HP | 298 HP |
| Engine RPM | 4000 RPM | 4600 RPM |
| Torque | 300 Nm | 639 Nm |
| Number of Seats | 4 seats | 2 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1698 kg | 1430 kg |
| Vehicle Length | 4580 mm | 4430 mm |
| Vehicle Width | 1780 mm | 1710 mm |
| Vehicle Height | 1400 mm | 1310 mm |
| Wheelbase Size | 2660 mm | 2450 mm |
