2007 Fiat Siena vs. 1975 Mazda RX 4 Coupe
To start off, 2007 Fiat Siena is newer by 32 year(s). Which means there will be less support and parts availability for 1975 Mazda RX 4 Coupe. In addition, the cost of maintenance, including insurance, on 1975 Mazda RX 4 Coupe would be higher. At 2,616 cc (2 cylinders), 1975 Mazda RX 4 Coupe is equipped with a bigger engine. In terms of performance, 1975 Mazda RX 4 Coupe (114 HP @ 6000 RPM) has 46 more horse power than 2007 Fiat Siena. (68 HP @ 4600 RPM) In normal driving conditions, 1975 Mazda RX 4 Coupe should accelerate faster than 2007 Fiat Siena. With that said, vehicle weight also plays an important factor in acceleration. 1975 Mazda RX 4 Coupe weights approximately 20 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.
Let's talk about torque, 1975 Mazda RX 4 Coupe (165 Nm @ 4000 RPM) has 30 more torque (in Nm) than 2007 Fiat Siena. (135 Nm @ 2500 RPM). This means 1975 Mazda RX 4 Coupe will have an easier job in driving up hills or pulling heavy equipment than 2007 Fiat Siena.
Compare all specifications:
| 2007 Fiat Siena | 1975 Mazda RX 4 Coupe | |
| Make | Fiat | Mazda |
| Model | Siena | RX 4 Coupe |
| Year Released | 2007 | 1975 |
| Engine Position | Front | Front |
| Engine Size | 1697 cc | 2616 cc |
| Engine Cylinders | 4 cylinders | 2 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 68 HP | 114 HP |
| Engine RPM | 4600 RPM | 6000 RPM |
| Torque | 135 Nm | 165 Nm |
| Torque RPM | 2500 RPM | 4000 RPM |
| Fuel Type | Diesel | Gasoline |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Weight | 1090 kg | 1110 kg |
| Vehicle Length | 4140 mm | 4400 mm |
| Vehicle Width | 1640 mm | 1670 mm |
| Vehicle Height | 1440 mm | 1390 mm |
| Wheelbase Size | 2380 mm | 2520 mm |
