2006 BMW 645 vs. 1968 Cadillac Calais
To start off, 2006 BMW 645 is newer by 38 year(s). Which means there will be less support and parts availability for 1968 Cadillac Calais. In addition, the cost of maintenance, including insurance, on 1968 Cadillac Calais would be higher. At 7,734 cc (8 cylinders), 1968 Cadillac Calais is equipped with a bigger engine. In terms of performance, 2006 BMW 645 (328 HP @ 6100 RPM) has 100 more horse power than 1968 Cadillac Calais. (228 HP @ 4400 RPM). In normal driving conditions, 2006 BMW 645 should accelerate faster than 1968 Cadillac Calais. With that said, vehicle weight also plays an important factor in acceleration. 1968 Cadillac Calais weights approximately 269 kg more than 2006 BMW 645.
Let's talk about torque, 1968 Cadillac Calais (711 Nm) has 261 more torque (in Nm) than 2006 BMW 645. (450 Nm). This means 1968 Cadillac Calais will have an easier job in driving up hills or pulling heavy equipment than 2006 BMW 645.
Compare all specifications:
| 2006 BMW 645 | 1968 Cadillac Calais | |
| Make | BMW | Cadillac |
| Model | 645 | Calais |
| Year Released | 2006 | 1968 |
| Body Type | Convertible | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4398 cc | 7734 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Horse Power | 328 HP | 228 HP |
| Engine RPM | 6100 RPM | 4400 RPM |
| Torque | 450 Nm | 711 Nm |
| Engine Bore Size | 92 mm | 109.2 mm |
| Engine Stroke Size | 83 mm | 103.1 mm |
| Fuel Type | Gasoline | Gasoline |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1836 kg | 2105 kg |
| Vehicle Length | 4830 mm | 5720 mm |
| Vehicle Width | 1860 mm | 2040 mm |
| Vehicle Height | 1380 mm | 1360 mm |
| Wheelbase Size | 2790 mm | 3300 mm |
| Fuel Tank Capacity | 70 L | 82 L |
