2009 BMW X5 vs. 1971 Cadillac Calais
To start off, 2009 BMW X5 is newer by 38 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, 2009 BMW X5 (268 HP @ 6650 RPM) has 40 more horse power than 1971 Cadillac Calais. (228 HP @ 4400 RPM). In normal driving conditions, 2009 BMW X5 should accelerate faster than 1971 Cadillac Calais. With that said, vehicle weight also plays an important factor in acceleration. 2009 BMW X5 weights approximately 30 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:
| 2009 BMW X5 | 1971 Cadillac Calais | |
| Make | BMW | Cadillac |
| Model | X5 | Calais |
| Year Released | 2009 | 1971 |
| Body Type | SUV | Coupe |
| Engine Position | Front | Front |
| Engine Size | 2996 cc | 7733 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 268 HP | 228 HP |
| Engine RPM | 6650 RPM | 4400 RPM |
| Fuel Type | Gasoline - Premium | Gasoline |
| Vehicle Weight | 2130 kg | 2100 kg |
| Vehicle Length | 4860 mm | 5750 mm |
| Wheelbase Size | 2940 mm | 3310 mm |
