1973 Cadillac Calais vs. 1966 Pontiac GTO
To start off, 1973 Cadillac Calais is newer by 7 year(s). Which means there will be less support and parts availability for 1966 Pontiac GTO. In addition, the cost of maintenance, including insurance, on 1966 Pontiac GTO would be higher. At 7,734 cc (8 cylinders), 1973 Cadillac Calais is equipped with a bigger engine. In terms of performance, 1966 Pontiac GTO (366 HP @ 5200 RPM) has 158 more horse power than 1973 Cadillac Calais. (208 HP @ 4400 RPM) In normal driving conditions, 1966 Pontiac GTO should accelerate faster than 1973 Cadillac Calais. With that said, vehicle weight also plays an important factor in acceleration. 1973 Cadillac Calais weights approximately 845 kg more than 1966 Pontiac GTO.
Compare all specifications:
| 1973 Cadillac Calais | 1966 Pontiac GTO | |
| Make | Cadillac | Pontiac |
| Model | Calais | GTO |
| Year Released | 1973 | 1966 |
| Body Type | Sedan | Coupe |
| Engine Position | Front | Front |
| Engine Size | 7734 cc | 6375 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Horse Power | 208 HP | 366 HP |
| Engine RPM | 4400 RPM | 5200 RPM |
| Fuel Type | Gasoline | Gasoline |
| Vehicle Weight | 2245 kg | 1400 kg |
| Vehicle Length | 5880 mm | 5250 mm |
| Wheelbase Size | 3310 mm | 2930 mm |
