1975 AC 428 vs. 1970 Cadillac Calais
To start off, 1975 AC 428 is newer by 5 year(s). Which means there will be less support and parts availability for 1970 Cadillac Calais. In addition, the cost of maintenance, including insurance, on 1970 Cadillac Calais would be higher. At 7,734 cc (8 cylinders), 1970 Cadillac Calais is equipped with a bigger engine. In terms of performance, 1975 AC 428 (298 HP @ 4600 RPM) has 70 more horse power than 1970 Cadillac Calais. (228 HP @ 4400 RPM). In normal driving conditions, 1975 AC 428 should accelerate faster than 1970 Cadillac Calais. With that said, vehicle weight also plays an important factor in acceleration. 1970 Cadillac Calais weights approximately 670 kg more than 1975 AC 428.
Compare all specifications:
| 1975 AC 428 | 1970 Cadillac Calais | |
| Make | AC | Cadillac |
| Model | 428 | Calais |
| Year Released | 1975 | 1970 |
| Engine Position | Front | Front |
| Engine Size | 7003 cc | 7734 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 298 HP | 228 HP |
| Engine RPM | 4600 RPM | 4400 RPM |
| Fuel Type | Gasoline | Gasoline |
| Vehicle Weight | 1430 kg | 2100 kg |
| Vehicle Length | 4430 mm | 5730 mm |
| Wheelbase Size | 2450 mm | 3300 mm |
