2006 Audi S4 vs. 1970 AC 428
To start off, 2006 Audi S4 is newer by 36 year(s). Which means there will be less support and parts availability for 1970 AC 428. In addition, the cost of maintenance, including insurance, on 1970 AC 428 would be higher. At 7,003 cc (8 cylinders), 1970 AC 428 is equipped with a bigger engine. In terms of performance, 2006 Audi S4 (340 HP @ 7000 RPM) has 42 more horse power than 1970 AC 428. (298 HP @ 4600 RPM). In normal driving conditions, 2006 Audi S4 should accelerate faster than 1970 AC 428. With that said, vehicle weight also plays an important factor in acceleration. 2006 Audi S4 weights approximately 450 kg more than 1970 AC 428. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1970 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 1970 AC 428. However, in wet, icy, snow, or gravel driving conditions, 2006 Audi S4, 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, 1970 AC 428 (640 Nm @ 2800 RPM) has 230 more torque (in Nm) than 2006 Audi S4. (410 Nm @ 3500 RPM). This means 1970 AC 428 will have an easier job in driving up hills or pulling heavy equipment than 2006 Audi S4. 1970 AC 428 has automatic transmission and 2006 Audi S4 has manual transmission. 2006 Audi S4 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 1970 AC 428 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2006 Audi S4 | 1970 AC 428 | |
| Make | Audi | AC |
| Model | S4 | 428 |
| Year Released | 2006 | 1970 |
| Engine Position | Front | Front |
| Engine Size | 4163 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 | 640 Nm |
| Torque RPM | 3500 RPM | 2800 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Front | Rear |
| Transmission Type | Manual | Automatic |
| 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 | 2650 mm | 2450 mm |
