2007 Citroen C6 vs. 1970 Riley 4
To start off, 2007 Citroen C6 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 2,179 cc (4 cylinders), 2007 Citroen C6 is equipped with a bigger engine. In terms of performance, 2007 Citroen C6 (168 HP @ 4000 RPM) has 101 more horse power than 1970 Riley 4. (67 HP @ 5000 RPM). In normal driving conditions, 2007 Citroen C6 should accelerate faster than 1970 Riley 4. With that said, vehicle weight also plays an important factor in acceleration. 2007 Citroen C6 weights approximately 747 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, 2007 Citroen C6, 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, 2007 Citroen C6 (370 Nm @ 1500 RPM) has 250 more torque (in Nm) than 1970 Riley 4. (120 Nm @ 2500 RPM). This means 2007 Citroen C6 will have an easier job in driving up hills or pulling heavy equipment than 1970 Riley 4.
Compare all specifications:
| 2007 Citroen C6 | 1970 Riley 4 | |
| Make | Citroen | Riley |
| Model | C6 | 4 |
| Year Released | 2007 | 1970 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2179 cc | 1622 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 168 HP | 67 HP |
| Engine RPM | 4000 RPM | 5000 RPM |
| Torque | 370 Nm | 120 Nm |
| Torque RPM | 1500 RPM | 2500 RPM |
| Engine Bore Size | 85.1 mm | 76.2 mm |
| Engine Stroke Size | 96 mm | 88.9 mm |
| Engine Compression Ratio | 18.0:1 | 8.3:1 |
| Fuel Type | Diesel | Gasoline |
| Drive Type | Front | Rear |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1895 kg | 1148 kg |
| Vehicle Width | 1870 mm | 1620 mm |
| Vehicle Height | 1470 mm | 1510 mm |
| Wheelbase Size | 2910 mm | 2530 mm |
| Fuel Tank Capacity | 72 L | 45 L |
