2006 Cadillac STS vs. 2010 Alfa Romeo 159
To start off, 2010 Alfa Romeo 159 is newer by 4 year(s). Which means there will be less support and parts availability for 2006 Cadillac STS. In addition, the cost of maintenance, including insurance, on 2006 Cadillac STS would be higher. At 3,563 cc (6 cylinders), 2006 Cadillac STS is equipped with a bigger engine. In terms of performance, 2006 Cadillac STS (253 HP @ 6500 RPM) has 46 more horse power than 2010 Alfa Romeo 159. (207 HP @ 4000 RPM). In normal driving conditions, 2006 Cadillac STS should accelerate faster than 2010 Alfa Romeo 159. With that said, vehicle weight also plays an important factor in acceleration. 2006 Cadillac STS weights approximately 12 kg more than 2010 Alfa Romeo 159. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2010 Alfa Romeo 159 is four wheel drive (4WD), it will have significant more traction and grip than 2006 Cadillac STS. In wet, icy, snow, or gravel driving conditions, 2010 Alfa Romeo 159 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, 2010 Alfa Romeo 159 (401 Nm @ 1500 RPM) has 59 more torque (in Nm) than 2006 Cadillac STS. (342 Nm @ 3200 RPM). This means 2010 Alfa Romeo 159 will have an easier job in driving up hills or pulling heavy equipment than 2006 Cadillac STS. 2006 Cadillac STS has automatic transmission and 2010 Alfa Romeo 159 has manual transmission. 2010 Alfa Romeo 159 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2006 Cadillac STS will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2006 Cadillac STS | 2010 Alfa Romeo 159 | |
| Make | Cadillac | Alfa Romeo |
| Model | STS | 159 |
| Year Released | 2006 | 2010 |
| Body Type | Sedan | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 3563 cc | 2387 cc |
| Engine Cylinders | 6 cylinders | 5 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 253 HP | 207 HP |
| Engine RPM | 6500 RPM | 4000 RPM |
| Torque | 342 Nm | 401 Nm |
| Torque RPM | 3200 RPM | 1500 RPM |
| Engine Bore Size | 94 mm | 82 mm |
| Engine Stroke Size | 85.6 mm | 90.4 mm |
| Fuel Type | Gasoline - Premium | Diesel |
| Top Speed | 229 km/hour | 225 km/hour |
| Acceleration 0-100mph | 7.4 seconds | 8.5 seconds |
| Drive Type | Rear | 4WD |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1782 kg | 1770 kg |
| Vehicle Length | 4990 mm | 4670 mm |
| Vehicle Width | 1850 mm | 1840 mm |
| Vehicle Height | 1470 mm | 1460 mm |
| Wheelbase Size | 2960 mm | 2710 mm |
| Fuel Consumption Overall | 12.4 L/100km | 7.4 L/100km |
| Fuel Tank Capacity | 66 L | 70 L |
