1971 Cadillac Calais vs. 2005 Opel Vectra
To start off, 2005 Opel Vectra is newer by 34 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, 1971 Cadillac Calais (228 HP @ 4400 RPM) has 129 more horse power than 2005 Opel Vectra. (99 HP @ 4000 RPM). In normal driving conditions, 1971 Cadillac Calais should accelerate faster than 2005 Opel Vectra. With that said, vehicle weight also plays an important factor in acceleration. 1971 Cadillac Calais weights approximately 606 kg more than 2005 Opel Vectra. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Compare all specifications:
| 1971 Cadillac Calais | 2005 Opel Vectra | |
| Make | Cadillac | Opel |
| Model | Calais | Vectra |
| Year Released | 1971 | 2005 |
| Body Type | Coupe | Sedan |
| Engine Position | Front | Front |
| Engine Size | 7733 cc | 1994 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 228 HP | 99 HP |
| Engine RPM | 4400 RPM | 4000 RPM |
| Fuel Type | Gasoline | Diesel |
| Vehicle Weight | 2100 kg | 1494 kg |
| Vehicle Length | 5750 mm | 4600 mm |
| Wheelbase Size | 3310 mm | 2610 mm |
