2005 Cadillac XLR vs. 1971 Riley 4
To start off, 2005 Cadillac XLR is newer by 34 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 4,564 cc (8 cylinders), 2005 Cadillac XLR is equipped with a bigger engine. In terms of performance, 2005 Cadillac XLR (322 HP @ 6400 RPM) has 255 more horse power than 1971 Riley 4. (67 HP @ 5000 RPM). In normal driving conditions, 2005 Cadillac XLR should accelerate faster than 1971 Riley 4. With that said, vehicle weight also plays an important factor in acceleration. 2005 Cadillac XLR weights approximately 506 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.
Both vehicles are rear wheel drive (RWD) - it offers better handling in dry conditions; in addition, if you are looking to drift, both vehicles do the job better than front 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, 2005 Cadillac XLR (420 Nm @ 4000 RPM) has 299 more torque (in Nm) than 1971 Riley 4. (121 Nm @ 2500 RPM). This means 2005 Cadillac XLR will have an easier job in driving up hills or pulling heavy equipment than 1971 Riley 4.
Compare all specifications:
| 2005 Cadillac XLR | 1971 Riley 4 | |
| Make | Cadillac | Riley |
| Model | XLR | 4 |
| Year Released | 2005 | 1971 |
| Body Type | Convertible | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4564 cc | 1622 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 322 HP | 67 HP |
| Engine RPM | 6400 RPM | 5000 RPM |
| Torque | 420 Nm | 121 Nm |
| Torque RPM | 4000 RPM | 2500 RPM |
| Engine Bore Size | 93 mm | 76.3 mm |
| Engine Stroke Size | 84 mm | 88.9 mm |
| Engine Compression Ratio | 11.0:1 | 8.3:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | Rear | Rear |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1654 kg | 1148 kg |
| Vehicle Length | 4520 mm | 4540 mm |
| Vehicle Width | 1840 mm | 1620 mm |
| Vehicle Height | 1290 mm | 1510 mm |
| Wheelbase Size | 2690 mm | 2530 mm |
| Fuel Tank Capacity | 68 L | 45 L |
