2003 BMW X5 vs. 1971 Monteverdi Sierra
To start off, 2003 BMW X5 is newer by 32 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, 2003 BMW X5 (215 HP @ 4000 RPM) has 55 more horse power than 1971 Monteverdi Sierra. (160 HP @ 3500 RPM). In normal driving conditions, 2003 BMW X5 should accelerate faster than 1971 Monteverdi Sierra. With that said, vehicle weight also plays an important factor in acceleration. 2003 BMW X5 weights approximately 770 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.
Because 2003 BMW X5 is four wheel drive (4WD), it will have significant more traction and grip than 1971 Monteverdi Sierra. In wet, icy, snow, or gravel driving conditions, 2003 BMW X5 will offer significantly more control. 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, 2003 BMW X5 (500 Nm @ 2000 RPM) has 112 more torque (in Nm) than 1971 Monteverdi Sierra. (388 Nm @ 2000 RPM). This means 2003 BMW X5 will have an easier job in driving up hills or pulling heavy equipment than 1971 Monteverdi Sierra. 1971 Monteverdi Sierra has automatic transmission and 2003 BMW X5 has manual transmission. 2003 BMW X5 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 1971 Monteverdi Sierra will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2003 BMW X5 | 1971 Monteverdi Sierra | |
| Make | BMW | Monteverdi |
| Model | X5 | Sierra |
| Year Released | 2003 | 1971 |
| Engine Position | Front | Front |
| Engine Size | 2979 cc | 5210 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 215 HP | 160 HP |
| Engine RPM | 4000 RPM | 3500 RPM |
| Torque | 500 Nm | 388 Nm |
| Torque RPM | 2000 RPM | 2000 RPM |
| Engine Bore Size | 84.1 mm | 99.4 mm |
| Engine Stroke Size | 90 mm | 84.1 mm |
| Engine Compression Ratio | 18.0:1 | 8.5:1 |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 2170 kg | 1400 kg |
| Vehicle Length | 4670 mm | 4690 mm |
| Vehicle Width | 1880 mm | 1830 mm |
| Vehicle Height | 1720 mm | 1290 mm |
| Wheelbase Size | 2940 mm | 2750 mm |
| Fuel Tank Capacity | 93 L | 82 L |
