1966 Riley Kestrel vs. 2011 Audi S4
To start off, 2011 Audi S4 is newer by 45 year(s). Which means there will be less support and parts availability for 1966 Riley Kestrel. In addition, the cost of maintenance, including insurance, on 1966 Riley Kestrel would be higher. At 3,000 cc (6 cylinders), 2011 Audi S4 is equipped with a bigger engine. In terms of performance, 2011 Audi S4 (333 HP @ 5500 RPM) has 280 more horse power than 1966 Riley Kestrel. (53 HP @ 5500 RPM) In normal driving conditions, 2011 Audi S4 should accelerate faster than 1966 Riley Kestrel. With that said, vehicle weight also plays an important factor in acceleration. 2011 Audi S4 weights approximately 765 kg more than 1966 Riley Kestrel. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2011 Audi S4 is all wheel drive (AWD), it will have significant more traction and grip than 1966 Riley Kestrel. In wet, icy, snow, or gravel driving conditions, 2011 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, 2011 Audi S4 (440 Nm @ 2900 RPM) has 357 more torque (in Nm) than 1966 Riley Kestrel. (83 Nm @ 2500 RPM). This means 2011 Audi S4 will have an easier job in driving up hills or pulling heavy equipment than 1966 Riley Kestrel.
Compare all specifications:
| 1966 Riley Kestrel | 2011 Audi S4 | |
| Make | Riley | Audi |
| Model | Kestrel | S4 |
| Year Released | 1966 | 2011 |
| Engine Size | 1098 cc | 3000 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 53 HP | 333 HP |
| Engine RPM | 5500 RPM | 5500 RPM |
| Torque | 83 Nm | 440 Nm |
| Torque RPM | 2500 RPM | 2900 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Front | AWD |
| Vehicle Weight | 885 kg | 1650 kg |
| Vehicle Length | 3730 mm | 4704 mm |
| Vehicle Width | 1540 mm | 1829 mm |
| Vehicle Height | 1350 mm | 1427 mm |
| Wheelbase Size | 2380 mm | 2809 mm |
| Fuel Tank Capacity | 25 L | 64 L |
