2004 Audi A4 vs. 1966 Riley Kestrel
To start off, 2004 Audi A4 is newer by 38 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 2,496 cc (6 cylinders), 2004 Audi A4 is equipped with a bigger engine. In terms of performance, 2004 Audi A4 (161 HP @ 4000 RPM) has 108 more horse power than 1966 Riley Kestrel. (53 HP @ 5500 RPM). In normal driving conditions, 2004 Audi A4 should accelerate faster than 1966 Riley Kestrel. With that said, vehicle weight also plays an important factor in acceleration. 2004 Audi A4 weights approximately 675 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.
Both vehicles are front wheel drive (FWD). Which offers better traction when its slippery than rear wheel drive vehicles. 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, 2004 Audi A4 (350 Nm @ 1500 RPM) has 267 more torque (in Nm) than 1966 Riley Kestrel. (83 Nm @ 2500 RPM). This means 2004 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 1966 Riley Kestrel.
Compare all specifications:
| 2004 Audi A4 | 1966 Riley Kestrel | |
| Make | Audi | Riley |
| Model | A4 | Kestrel |
| Year Released | 2004 | 1966 |
| Engine Size | 2496 cc | 1098 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 161 HP | 53 HP |
| Engine RPM | 4000 RPM | 5500 RPM |
| Torque | 350 Nm | 83 Nm |
| Torque RPM | 1500 RPM | 2500 RPM |
| Engine Compression Ratio | 18.0:1 | 8.3:1 |
| Fuel Type | Diesel | Gasoline |
| Drive Type | Front | Front |
| Vehicle Weight | 1560 kg | 885 kg |
| Vehicle Length | 4590 mm | 3730 mm |
| Vehicle Width | 1780 mm | 1540 mm |
| Vehicle Height | 1430 mm | 1350 mm |
| Wheelbase Size | 2660 mm | 2380 mm |
| Fuel Tank Capacity | 70 L | 25 L |
