2003 BMW 520 vs. 1971 Cadillac Calais
To start off, 2003 BMW 520 is newer by 32 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 61 more horse power than 2003 BMW 520. (167 HP @ 6100 RPM) In normal driving conditions, 1971 Cadillac Calais should accelerate faster than 2003 BMW 520. With that said, vehicle weight also plays an important factor in acceleration. 1971 Cadillac Calais weights approximately 430 kg more than 2003 BMW 520. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Compare all specifications:
| 2003 BMW 520 | 1971 Cadillac Calais | |
| Make | BMW | Cadillac |
| Model | 520 | Calais |
| Year Released | 2003 | 1971 |
| Body Type | Station Wagon | Coupe |
| Engine Position | Front | Front |
| Engine Size | 2170 cc | 7733 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 167 HP | 228 HP |
| Engine RPM | 6100 RPM | 4400 RPM |
| Vehicle Weight | 1670 kg | 2100 kg |
| Vehicle Length | 4810 mm | 5750 mm |
| Wheelbase Size | 2890 mm | 3310 mm |
