1971 Cadillac Fleetwood vs. 2009 Daihatsu Sirion
To start off, 2009 Daihatsu Sirion is newer by 38 year(s). Which means there will be less support and parts availability for 1971 Cadillac Fleetwood. In addition, the cost of maintenance, including insurance, on 1971 Cadillac Fleetwood would be higher. At 7,725 cc (8 cylinders), 1971 Cadillac Fleetwood is equipped with a bigger engine. In terms of performance, 1971 Cadillac Fleetwood (345 HP @ 4400 RPM) has 243 more horse power than 2009 Daihatsu Sirion. (102 HP @ 6000 RPM). In normal driving conditions, 1971 Cadillac Fleetwood should accelerate faster than 2009 Daihatsu Sirion. With that said, vehicle weight also plays an important factor in acceleration. 1971 Cadillac Fleetwood weights approximately 1318 kg more than 2009 Daihatsu Sirion. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2009 Daihatsu Sirion is four wheel drive (4WD), it will have significant more traction and grip than 1971 Cadillac Fleetwood. In wet, icy, snow, or gravel driving conditions, 2009 Daihatsu Sirion will offer significantly more control. With that said, do keep in mind that many other factors such as speed and the wear on your tires can also have significant impact on traction and control. Let's talk about torque, 1971 Cadillac Fleetwood (679 Nm @ 2800 RPM) has 547 more torque (in Nm) than 2009 Daihatsu Sirion. (132 Nm @ 4400 RPM). This means 1971 Cadillac Fleetwood will have an easier job in driving up hills or pulling heavy equipment than 2009 Daihatsu Sirion. 1971 Cadillac Fleetwood has automatic transmission and 2009 Daihatsu Sirion has manual transmission. 2009 Daihatsu Sirion will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 1971 Cadillac Fleetwood will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1971 Cadillac Fleetwood | 2009 Daihatsu Sirion | |
| Make | Cadillac | Daihatsu |
| Model | Fleetwood | Sirion |
| Year Released | 1971 | 2009 |
| Body Type | Sedan | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 7725 cc | 1495 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 345 HP | 102 HP |
| Engine RPM | 4400 RPM | 6000 RPM |
| Torque | 679 Nm | 132 Nm |
| Torque RPM | 2800 RPM | 4400 RPM |
| Engine Bore Size | 109.2 mm | 72 mm |
| Engine Stroke Size | 103.1 mm | 91.8 mm |
| Top Speed | 193 km/hour | 185 km/hour |
| Drive Type | Rear | 4WD |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 2223 kg | 905 kg |
| Vehicle Length | 5810 mm | 3640 mm |
| Vehicle Width | 2040 mm | 1670 mm |
| Vehicle Height | 1420 mm | 1560 mm |
| Wheelbase Size | 3380 mm | 2440 mm |
