2006 Audi A4 vs. 1971 Riley 4
To start off, 2006 Audi A4 is newer by 35 year(s). Which means there will be less support and parts availability for 1971 Riley 4. In addition, the cost of maintenance, including insurance, on 1971 Riley 4 would be higher. At 1,983 cc (4 cylinders), 2006 Audi A4 is equipped with a bigger engine. In terms of performance, 2006 Audi A4 (200 HP @ 5100 RPM) has 133 more horse power than 1971 Riley 4. (67 HP @ 5000 RPM). In normal driving conditions, 2006 Audi A4 should accelerate faster than 1971 Riley 4. With that said, vehicle weight also plays an important factor in acceleration. 2006 Audi A4 weights approximately 732 kg more than 1971 Riley 4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2006 Audi A4 is four wheel drive (4WD), it will have significant more traction and grip than 1971 Riley 4. In wet, icy, snow, or gravel driving conditions, 2006 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, 2006 Audi A4 (281 Nm @ 1800 RPM) has 160 more torque (in Nm) than 1971 Riley 4. (121 Nm @ 2500 RPM). This means 2006 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 1971 Riley 4.
Compare all specifications:
| 2006 Audi A4 | 1971 Riley 4 | |
| Make | Audi | Riley |
| Model | A4 | 4 |
| Year Released | 2006 | 1971 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 1983 cc | 1622 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 200 HP | 67 HP |
| Engine RPM | 5100 RPM | 5000 RPM |
| Torque | 281 Nm | 121 Nm |
| Torque RPM | 1800 RPM | 2500 RPM |
| Engine Bore Size | 82.5 mm | 76.3 mm |
| Engine Stroke Size | 92.8 mm | 88.9 mm |
| Drive Type | 4WD | Rear |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1880 kg | 1148 kg |
| Vehicle Length | 4590 mm | 4540 mm |
| Vehicle Width | 1780 mm | 1620 mm |
| Vehicle Height | 1430 mm | 1510 mm |
| Wheelbase Size | 2660 mm | 2530 mm |
| Fuel Tank Capacity | 70 L | 45 L |
