1975 Cadillac Calais vs. 2007 Fiat Siena
To start off, 2007 Fiat Siena is newer by 32 year(s). Which means there will be less support and parts availability for 1975 Cadillac Calais. In addition, the cost of maintenance, including insurance, on 1975 Cadillac Calais would be higher. At 8,192 cc (8 cylinders), 1975 Cadillac Calais is equipped with a bigger engine. In terms of performance, 1975 Cadillac Calais (180 HP @ 4400 RPM) has 80 more horse power than 2007 Fiat Siena. (100 HP @ 5500 RPM). In normal driving conditions, 1975 Cadillac Calais should accelerate faster than 2007 Fiat Siena. With that said, vehicle weight also plays an important factor in acceleration. 1975 Cadillac Calais weights approximately 1204 kg more than 2007 Fiat Siena. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Compare all specifications:
| 1975 Cadillac Calais | 2007 Fiat Siena | |
| Make | Cadillac | Fiat |
| Model | Calais | Siena |
| Year Released | 1975 | 2007 |
| Body Type | Coupe | Sedan |
| Engine Position | Front | Front |
| Engine Size | 8192 cc | 1581 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 180 HP | 100 HP |
| Engine RPM | 4400 RPM | 5500 RPM |
| Fuel Type | Gasoline | Gasoline |
| Vehicle Weight | 2274 kg | 1070 kg |
| Vehicle Width | 2030 mm | 1640 mm |
| Wheelbase Size | 3310 mm | 2380 mm |
