1971 Cadillac Calais vs. 2011 BMW X5
To start off, 2011 BMW X5 is newer by 40 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, 2011 BMW X5 (304 HP @ 440 RPM) has 76 more horse power than 1971 Cadillac Calais. (228 HP @ 4400 RPM) In normal driving conditions, 2011 BMW X5 should accelerate faster than 1971 Cadillac Calais. With that said, vehicle weight also plays an important factor in acceleration. 2011 BMW X5 weights approximately 85 kg more than 1971 Cadillac Calais. 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 | 2011 BMW X5 | |
| Make | Cadillac | BMW |
| Model | Calais | X5 |
| Year Released | 1971 | 2011 |
| Body Type | Coupe | SUV |
| Engine Position | Front | Front |
| Engine Size | 7733 cc | 2993 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Horse Power | 228 HP | 304 HP |
| Engine RPM | 4400 RPM | 440 RPM |
| Fuel Type | Gasoline | Diesel |
| Vehicle Weight | 2100 kg | 2185 kg |
| Vehicle Length | 5750 mm | 4857 mm |
| Wheelbase Size | 3310 mm | 2934 mm |
