2007 Audi S4 vs. 1970 Riley 4
To start off, 2007 Audi S4 is newer by 37 year(s). Which means there will be less support and parts availability for 1970 Riley 4. In addition, the cost of maintenance, including insurance, on 1970 Riley 4 would be higher. At 4,163 cc (8 cylinders), 2007 Audi S4 is equipped with a bigger engine. In terms of performance, 2007 Audi S4 (339 HP @ 7000 RPM) has 272 more horse power than 1970 Riley 4. (67 HP @ 5000 RPM). In normal driving conditions, 2007 Audi S4 should accelerate faster than 1970 Riley 4. With that said, vehicle weight also plays an important factor in acceleration. 2007 Audi S4 weights approximately 574 kg more than 1970 Riley 4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2007 Audi S4 is four wheel drive (4WD), it will have significant more traction and grip than 1970 Riley 4. In wet, icy, snow, or gravel driving conditions, 2007 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, 2007 Audi S4 (410 Nm @ 3500 RPM) has 290 more torque (in Nm) than 1970 Riley 4. (120 Nm @ 2500 RPM). This means 2007 Audi S4 will have an easier job in driving up hills or pulling heavy equipment than 1970 Riley 4.
Compare all specifications:
| 2007 Audi S4 | 1970 Riley 4 | |
| Make | Audi | Riley |
| Model | S4 | 4 |
| Year Released | 2007 | 1970 |
| Body Type | Station Wagon | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4163 cc | 1622 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 339 HP | 67 HP |
| Engine RPM | 7000 RPM | 5000 RPM |
| Torque | 410 Nm | 120 Nm |
| Torque RPM | 3500 RPM | 2500 RPM |
| Engine Bore Size | 84.5 mm | 76.2 mm |
| Engine Stroke Size | 92.8 mm | 88.9 mm |
| Engine Compression Ratio | 11.0:1 | 8.3:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | 4WD | Rear |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1722 kg | 1148 kg |
| Vehicle Length | 4590 mm | 4540 mm |
| Vehicle Width | 1730 mm | 1620 mm |
| Vehicle Height | 1430 mm | 1510 mm |
| Wheelbase Size | 2650 mm | 2530 mm |
| Fuel Tank Capacity | 63 L | 45 L |
