1971 AC 428 vs. 1971 Cadillac Calais
To start off, both 1971 AC 428 and 1971 Cadillac Calais were released in the same year (1971). Therefore the support and the availability on parts for both vehicles should be relatively similar. At 7,733 cc (8 cylinders), 1971 Cadillac Calais is equipped with a bigger engine. In terms of performance, 1971 AC 428 (298 HP @ 4600 RPM) has 70 more horse power than 1971 Cadillac Calais. (228 HP @ 4400 RPM). In normal driving conditions, 1971 AC 428 should accelerate faster than 1971 Cadillac Calais. With that said, vehicle weight also plays an important factor in acceleration. 1971 Cadillac Calais weights approximately 670 kg more than 1971 AC 428.
Compare all specifications:
| 1971 AC 428 | 1971 Cadillac Calais | |
| Make | AC | Cadillac |
| Model | 428 | Calais |
| Year Released | 1971 | 1971 |
| Engine Position | Front | Front |
| Engine Size | 7003 cc | 7733 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 | 5750 mm |
| Wheelbase Size | 2450 mm | 3310 mm |
