2007 Cadillac STS vs. 2007 Fiat Siena
To start off, both 2007 Cadillac STS and 2007 Fiat Siena were released in the same year (2007). Therefore the support and the availability on parts for both vehicles should be relatively similar. At 3,556 cc (6 cylinders), 2007 Cadillac STS is equipped with a bigger engine. In terms of performance, 2007 Cadillac STS (255 HP @ 6500 RPM) has 155 more horse power than 2007 Fiat Siena. (100 HP @ 5500 RPM). In normal driving conditions, 2007 Cadillac STS should accelerate faster than 2007 Fiat Siena.
Because 2007 Cadillac STS is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 2007 Cadillac STS. However, in wet, icy, snow, or gravel driving conditions, 2007 Fiat Siena, being front wheel drive (FWD), will offer much better control with better grip. 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, 2007 Cadillac STS (342 Nm @ 3200 RPM) has 202 more torque (in Nm) than 2007 Fiat Siena. (140 Nm @ 4000 RPM). This means 2007 Cadillac STS will have an easier job in driving up hills or pulling heavy equipment than 2007 Fiat Siena. 2007 Cadillac STS has automatic transmission and 2007 Fiat Siena has manual transmission. 2007 Fiat Siena will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2007 Cadillac STS will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2007 Cadillac STS | 2007 Fiat Siena | |
| Make | Cadillac | Fiat |
| Model | STS | Siena |
| Year Released | 2007 | 2007 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3556 cc | 1581 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 255 HP | 100 HP |
| Engine RPM | 6500 RPM | 5500 RPM |
| Torque | 342 Nm | 140 Nm |
| Torque RPM | 3200 RPM | 4000 RPM |
| Engine Compression Ratio | 10.2:1 | 9.5:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | Rear | Front |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Width | 1850 mm | 1640 mm |
| Wheelbase Size | 2960 mm | 2380 mm |
| Fuel Consumption Overall | 11.2 L/100km | 8.2 L/100km |
| Fuel Tank Capacity | 64 L | 54 L |
