2006 Cadillac STS vs. 1971 Cadillac Fleetwood
To start off, 2006 Cadillac STS is newer by 35 year(s). Which means there will be less support and parts availability for 1971 Cadillac Fleetwood. In addition, the cost of maintenance, including insurance, on 1971 Cadillac Fleetwood would be higher. At 7,725 cc (8 cylinders), 1971 Cadillac Fleetwood is equipped with a bigger engine. In terms of performance, 1971 Cadillac Fleetwood (345 HP @ 4400 RPM) has 24 more horse power than 2006 Cadillac STS. (321 HP @ 6400 RPM) In normal driving conditions, 1971 Cadillac Fleetwood should accelerate faster than 2006 Cadillac STS. With that said, vehicle weight also plays an important factor in acceleration. 1971 Cadillac Fleetwood weights approximately 405 kg more than 2006 Cadillac STS. 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, 1971 Cadillac Fleetwood (679 Nm @ 2800 RPM) has 252 more torque (in Nm) than 2006 Cadillac STS. (427 Nm @ 4400 RPM). This means 1971 Cadillac Fleetwood will have an easier job in driving up hills or pulling heavy equipment than 2006 Cadillac STS.
Compare all specifications:
| 2006 Cadillac STS | 1971 Cadillac Fleetwood | |
| Make | Cadillac | Cadillac |
| Model | STS | Fleetwood |
| Year Released | 2006 | 1971 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4565 cc | 7725 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Horse Power | 321 HP | 345 HP |
| Engine RPM | 6400 RPM | 4400 RPM |
| Torque | 427 Nm | 679 Nm |
| Torque RPM | 4400 RPM | 2800 RPM |
| Engine Bore Size | 93 mm | 109.2 mm |
| Engine Stroke Size | 84 mm | 103.1 mm |
| Top Speed | 250 km/hour | 193 km/hour |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1818 kg | 2223 kg |
| Vehicle Length | 4990 mm | 5810 mm |
| Vehicle Width | 1850 mm | 2040 mm |
| Vehicle Height | 1470 mm | 1420 mm |
| Wheelbase Size | 2960 mm | 3380 mm |
