2009 Citroen C4 vs. 1970 Riley 4
To start off, 2009 Citroen C4 is newer by 39 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 1,622 cc (4 cylinders), 1970 Riley 4 is equipped with a bigger engine. In terms of performance, 2009 Citroen C4 (108 HP @ 4000 RPM) has 41 more horse power than 1970 Riley 4. (67 HP @ 5000 RPM). In normal driving conditions, 2009 Citroen C4 should accelerate faster than 1970 Riley 4. With that said, vehicle weight also plays an important factor in acceleration. 2009 Citroen C4 weights approximately 457 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 1970 Riley 4 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 Riley 4. However, in wet, icy, snow, or gravel driving conditions, 2009 Citroen C4, 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, 2009 Citroen C4 (240 Nm @ 1750 RPM) has 120 more torque (in Nm) than 1970 Riley 4. (120 Nm @ 2500 RPM). This means 2009 Citroen C4 will have an easier job in driving up hills or pulling heavy equipment than 1970 Riley 4.
Compare all specifications:
| 2009 Citroen C4 | 1970 Riley 4 | |
| Make | Citroen | Riley |
| Model | C4 | 4 |
| Year Released | 2009 | 1970 |
| Body Type | Minivan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 1560 cc | 1622 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 108 HP | 67 HP |
| Engine RPM | 4000 RPM | 5000 RPM |
| Torque | 240 Nm | 120 Nm |
| Torque RPM | 1750 RPM | 2500 RPM |
| Engine Bore Size | 75 mm | 76.2 mm |
| Engine Stroke Size | 88 mm | 88.9 mm |
| Engine Compression Ratio | 18.0:1 | 8.3:1 |
| Fuel Type | Diesel | Gasoline |
| Drive Type | Front | Rear |
| Number of Seats | 7 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1605 kg | 1148 kg |
| Vehicle Length | 4590 mm | 4540 mm |
| Vehicle Width | 1840 mm | 1620 mm |
| Vehicle Height | 1630 mm | 1510 mm |
| Wheelbase Size | 2730 mm | 2530 mm |
| Fuel Tank Capacity | 60 L | 45 L |
