1971 Cadillac Calais vs. 1975 Monteverdi Hai 450
To start off, 1975 Monteverdi Hai 450 is newer by 4 year(s). Which means there will be less support and parts availability for 1971 Cadillac Calais. In addition, the cost of maintenance, including insurance, on 1971 Cadillac Calais would be higher. At 7,733 cc (8 cylinders), 1971 Cadillac Calais is equipped with a bigger engine. In terms of performance, 1975 Monteverdi Hai 450 (444 HP @ 5000 RPM) has 216 more horse power than 1971 Cadillac Calais. (228 HP @ 4400 RPM) In normal driving conditions, 1975 Monteverdi Hai 450 should accelerate faster than 1971 Cadillac Calais. With that said, vehicle weight also plays an important factor in acceleration. 1971 Cadillac Calais weights approximately 810 kg more than 1975 Monteverdi Hai 450.
Compare all specifications:
| 1971 Cadillac Calais | 1975 Monteverdi Hai 450 | |
| Make | Cadillac | Monteverdi |
| Model | Calais | Hai 450 |
| Year Released | 1971 | 1975 |
| Engine Position | Front | Middle |
| Engine Size | 7733 cc | 6974 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | in-line |
| Horse Power | 228 HP | 444 HP |
| Engine RPM | 4400 RPM | 5000 RPM |
| Fuel Type | Gasoline | Gasoline |
| Vehicle Weight | 2100 kg | 1290 kg |
| Vehicle Length | 5750 mm | 4360 mm |
| Wheelbase Size | 3310 mm | 2520 mm |
