1973 Cadillac Calais vs. 2006 GMC Sierra
To start off, 2006 GMC Sierra is newer by 33 year(s). Which means there will be less support and parts availability for 1973 Cadillac Calais. In addition, the cost of maintenance, including insurance, on 1973 Cadillac Calais would be higher. At 7,734 cc (8 cylinders), 1973 Cadillac Calais is equipped with a bigger engine. In terms of performance, 2006 GMC Sierra (345 HP @ 5200 RPM) has 137 more horse power than 1973 Cadillac Calais. (208 HP @ 4400 RPM) In normal driving conditions, 2006 GMC Sierra should accelerate faster than 1973 Cadillac Calais. With that said, vehicle weight also plays an important factor in acceleration. 2006 GMC Sierra weights approximately 233 kg more than 1973 Cadillac Calais. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Compare all specifications:
| 1973 Cadillac Calais | 2006 GMC Sierra | |
| Make | Cadillac | GMC |
| Model | Calais | Sierra |
| Year Released | 1973 | 2006 |
| Body Type | Sedan | Pickup |
| Engine Position | Front | Front |
| Engine Size | 7734 cc | 5996 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Horse Power | 208 HP | 345 HP |
| Engine RPM | 4400 RPM | 5200 RPM |
| Fuel Type | Gasoline | Gasoline |
| Vehicle Weight | 2245 kg | 2478 kg |
| Vehicle Length | 5880 mm | 5850 mm |
| Wheelbase Size | 3310 mm | 3650 mm |
