1973 Monteverdi Hai 450 vs. 2009 Porsche Cayenne
To start off, 2009 Porsche Cayenne is newer by 36 year(s). Which means there will be less support and parts availability for 1973 Monteverdi Hai 450. In addition, the cost of maintenance, including insurance, on 1973 Monteverdi Hai 450 would be higher. At 6,974 cc (8 cylinders), 1973 Monteverdi Hai 450 is equipped with a bigger engine. In terms of performance, 1973 Monteverdi Hai 450 (444 HP @ 5000 RPM) has 45 more horse power than 2009 Porsche Cayenne. (399 HP @ 6500 RPM). In normal driving conditions, 1973 Monteverdi Hai 450 should accelerate faster than 2009 Porsche Cayenne. With that said, vehicle weight also plays an important factor in acceleration. 2009 Porsche Cayenne weights approximately 60 kg more than 1973 Monteverdi Hai 450.
Because 2009 Porsche Cayenne is four wheel drive (4WD), it will have significant more traction and grip than 1973 Monteverdi Hai 450. In wet, icy, snow, or gravel driving conditions, 2009 Porsche Cayenne 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, 1973 Monteverdi Hai 450 (586 Nm @ 4000 RPM) has 86 more torque (in Nm) than 2009 Porsche Cayenne. (500 Nm @ 3500 RPM). This means 1973 Monteverdi Hai 450 will have an easier job in driving up hills or pulling heavy equipment than 2009 Porsche Cayenne.
Compare all specifications:
| 1973 Monteverdi Hai 450 | 2009 Porsche Cayenne | |
| Make | Monteverdi | Porsche |
| Model | Hai 450 | Cayenne |
| Year Released | 1973 | 2009 |
| Engine Position | Middle | Front |
| Engine Size | 6974 cc | 4806 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 444 HP | 399 HP |
| Engine RPM | 5000 RPM | 6500 RPM |
| Torque | 586 Nm | 500 Nm |
| Torque RPM | 4000 RPM | 3500 RPM |
| Engine Bore Size | 108 mm | 96 mm |
| Engine Stroke Size | 95.2 mm | 83 mm |
| Engine Compression Ratio | 10.3:1 | 12.5:1 |
| Fuel Type | Gasoline | Gasoline |
| Top Speed | 280 km/hour | 253 km/hour |
| Drive Type | Rear | 4WD |
| Transmission Type | Manual | Manual |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1290 kg | 1350 kg |
| Vehicle Length | 4380 mm | 4800 mm |
| Vehicle Width | 1800 mm | 1680 mm |
| Vehicle Height | 1100 mm | 1930 mm |
| Wheelbase Size | 2520 mm | 2860 mm |
| Fuel Tank Capacity | 130 L | 100 L |
