2008 Audi S4 vs. 1971 AC 428
To start off, 2008 Audi S4 is newer by 37 year(s). Which means there will be less support and parts availability for 1971 AC 428. In addition, the cost of maintenance, including insurance, on 1971 AC 428 would be higher. At 7,003 cc (8 cylinders), 1971 AC 428 is equipped with a bigger engine. In terms of performance, 2008 Audi S4 (340 HP @ 7000 RPM) has 42 more horse power than 1971 AC 428. (298 HP @ 4600 RPM). In normal driving conditions, 2008 Audi S4 should accelerate faster than 1971 AC 428. With that said, vehicle weight also plays an important factor in acceleration. 2008 Audi S4 weights approximately 275 kg more than 1971 AC 428. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2008 Audi S4 is four wheel drive (4WD), it will have significant more traction and grip than 1971 AC 428. In wet, icy, snow, or gravel driving conditions, 2008 Audi S4 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, 1971 AC 428 (639 Nm @ 2800 RPM) has 229 more torque (in Nm) than 2008 Audi S4. (410 Nm @ 3500 RPM). This means 1971 AC 428 will have an easier job in driving up hills or pulling heavy equipment than 2008 Audi S4.
Compare all specifications:
| 2008 Audi S4 | 1971 AC 428 | |
| Make | Audi | AC |
| Model | S4 | 428 |
| Year Released | 2008 | 1971 |
| Engine Position | Front | Front |
| Engine Size | 4161 cc | 7003 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | in-line |
| Horse Power | 340 HP | 298 HP |
| Engine RPM | 7000 RPM | 4600 RPM |
| Torque | 410 Nm | 639 Nm |
| Torque RPM | 3500 RPM | 2800 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1705 kg | 1430 kg |
| Vehicle Length | 4590 mm | 4430 mm |
| Vehicle Width | 1780 mm | 1710 mm |
| Vehicle Height | 1430 mm | 1310 mm |
| Wheelbase Size | 2650 mm | 2450 mm |
