2009 Alfa Romeo 159 vs. 2010 Cadillac STS
To start off, 2010 Cadillac STS is newer by 1 year(s). Which means there will be less support and parts availability for 2009 Alfa Romeo 159. In addition, the cost of maintenance, including insurance, on 2009 Alfa Romeo 159 would be higher. At 3,600 cc (6 cylinders), 2010 Cadillac STS is equipped with a bigger engine. In terms of performance, 2010 Cadillac STS (302 HP @ 6300 RPM) has 94 more horse power than 2009 Alfa Romeo 159. (208 HP @ 4000 RPM) In normal driving conditions, 2010 Cadillac STS should accelerate faster than 2009 Alfa Romeo 159. With that said, vehicle weight also plays an important factor in acceleration. 2010 Cadillac STS weights approximately 82 kg more than 2009 Alfa Romeo 159. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2010 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 2010 Cadillac STS. However, in wet, icy, snow, or gravel driving conditions, 2009 Alfa Romeo 159, 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, 2009 Alfa Romeo 159 (400 Nm @ 1500 RPM) has 32 more torque (in Nm) than 2010 Cadillac STS. (368 Nm @ 5200 RPM). This means 2009 Alfa Romeo 159 will have an easier job in driving up hills or pulling heavy equipment than 2010 Cadillac STS. 2010 Cadillac STS has automatic transmission and 2009 Alfa Romeo 159 has manual transmission. 2009 Alfa Romeo 159 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2010 Cadillac STS will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2009 Alfa Romeo 159 | 2010 Cadillac STS | |
| Make | Alfa Romeo | Cadillac |
| Model | 159 | STS |
| Year Released | 2009 | 2010 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2387 cc | 3600 cc |
| Engine Cylinders | 5 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 208 HP | 302 HP |
| Engine RPM | 4000 RPM | 6300 RPM |
| Torque | 400 Nm | 368 Nm |
| Torque RPM | 1500 RPM | 5200 RPM |
| Fuel Type | Diesel | Gasoline |
| Drive Type | Front | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1720 kg | 1802 kg |
| Vehicle Length | 4670 mm | 4996 mm |
| Vehicle Width | 1840 mm | 1844 mm |
| Vehicle Height | 1430 mm | 1463 mm |
| Wheelbase Size | 2710 mm | 2957 mm |
| Fuel Tank Capacity | 70 L | 64 L |
