2007 Cadillac STS vs. 1971 Monteverdi Sierra
To start off, 2007 Cadillac STS is newer by 36 year(s). Which means there will be less support and parts availability for 1971 Monteverdi Sierra. In addition, the cost of maintenance, including insurance, on 1971 Monteverdi Sierra would be higher. At 5,210 cc (8 cylinders), 1971 Monteverdi Sierra is equipped with a bigger engine. In terms of performance, 2007 Cadillac STS (320 HP @ 6400 RPM) has 160 more horse power than 1971 Monteverdi Sierra. (160 HP @ 3500 RPM). In normal driving conditions, 2007 Cadillac STS should accelerate faster than 1971 Monteverdi Sierra. With that said, vehicle weight also plays an important factor in acceleration. 2007 Cadillac STS weights approximately 166 kg more than 1971 Monteverdi Sierra. 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, 2007 Cadillac STS (427 Nm @ 4400 RPM) has 39 more torque (in Nm) than 1971 Monteverdi Sierra. (388 Nm @ 2000 RPM). This means 2007 Cadillac STS will have an easier job in driving up hills or pulling heavy equipment than 1971 Monteverdi Sierra.
Compare all specifications:
| 2007 Cadillac STS | 1971 Monteverdi Sierra | |
| Make | Cadillac | Monteverdi |
| Model | STS | Sierra |
| Year Released | 2007 | 1971 |
| Engine Position | Front | Front |
| Engine Size | 4565 cc | 5210 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Horse Power | 320 HP | 160 HP |
| Engine RPM | 6400 RPM | 3500 RPM |
| Torque | 427 Nm | 388 Nm |
| Torque RPM | 4400 RPM | 2000 RPM |
| Engine Bore Size | 93 mm | 99.4 mm |
| Engine Stroke Size | 84 mm | 84.1 mm |
| Engine Compression Ratio | 10.5:1 | 8.5:1 |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1566 kg | 1400 kg |
| Vehicle Length | 4990 mm | 4690 mm |
| Vehicle Width | 1850 mm | 1830 mm |
| Vehicle Height | 1470 mm | 1290 mm |
| Wheelbase Size | 2960 mm | 2750 mm |
| Fuel Tank Capacity | 64 L | 82 L |
