2006 BMW Z4 vs. 1971 Cadillac Calais
To start off, 2006 BMW Z4 is newer by 35 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, 2006 BMW Z4 (343 HP @ 7900 RPM) has 115 more horse power than 1971 Cadillac Calais. (228 HP @ 4400 RPM). In normal driving conditions, 2006 BMW Z4 should accelerate faster than 1971 Cadillac Calais. With that said, vehicle weight also plays an important factor in acceleration. 1971 Cadillac Calais weights approximately 768 kg more than 2006 BMW Z4.
Compare all specifications:
| 2006 BMW Z4 | 1971 Cadillac Calais | |
| Make | BMW | Cadillac |
| Model | Z4 | Calais |
| Year Released | 2006 | 1971 |
| Body Type | Coupe | Coupe |
| Engine Position | Front | Front |
| Engine Size | 3246 cc | 7733 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 343 HP | 228 HP |
| Engine RPM | 7900 RPM | 4400 RPM |
| Fuel Type | Gasoline - Premium | Gasoline |
| Vehicle Weight | 1332 kg | 2100 kg |
| Vehicle Length | 4100 mm | 5750 mm |
| Wheelbase Size | 2500 mm | 3310 mm |
