2006 Cadillac STS vs. 2000 Alfa Romeo 166
To start off, 2006 Cadillac STS is newer by 6 year(s). Which means there will be less support and parts availability for 2000 Alfa Romeo 166. In addition, the cost of maintenance, including insurance, on 2000 Alfa Romeo 166 would be higher. At 4,565 cc (8 cylinders), 2006 Cadillac STS is equipped with a bigger engine. In terms of performance, 2006 Cadillac STS (321 HP @ 6400 RPM) has 185 more horse power than 2000 Alfa Romeo 166. (136 HP @ 4000 RPM). In normal driving conditions, 2006 Cadillac STS should accelerate faster than 2000 Alfa Romeo 166. With that said, vehicle weight also plays an important factor in acceleration. 2006 Cadillac STS weights approximately 328 kg more than 2000 Alfa Romeo 166. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2006 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 2006 Cadillac STS. However, in wet, icy, snow, or gravel driving conditions, 2000 Alfa Romeo 166, 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, 2006 Cadillac STS (427 Nm @ 4400 RPM) has 123 more torque (in Nm) than 2000 Alfa Romeo 166. (304 Nm @ 2000 RPM). This means 2006 Cadillac STS will have an easier job in driving up hills or pulling heavy equipment than 2000 Alfa Romeo 166. 2006 Cadillac STS has automatic transmission and 2000 Alfa Romeo 166 has manual transmission. 2000 Alfa Romeo 166 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 | 2000 Alfa Romeo 166 | |
| Make | Cadillac | Alfa Romeo |
| Model | STS | 166 |
| Year Released | 2006 | 2000 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4565 cc | 2387 cc |
| Engine Cylinders | 8 cylinders | 5 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 321 HP | 136 HP |
| Engine RPM | 6400 RPM | 4000 RPM |
| Torque | 427 Nm | 304 Nm |
| Torque RPM | 4400 RPM | 2000 RPM |
| Engine Bore Size | 93 mm | 82.1 mm |
| Engine Stroke Size | 84 mm | 90.4 mm |
| Engine Compression Ratio | 10.5:1 | 18.5:1 |
| Fuel Type | Gasoline - Premium | Diesel |
| Acceleration 0-100mph | 6.2 seconds | 9 seconds |
| Drive Type | Rear | Front |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1818 kg | 1490 kg |
| Vehicle Length | 4990 mm | 4730 mm |
| Vehicle Width | 1850 mm | 1820 mm |
| Vehicle Height | 1470 mm | 1420 mm |
| Wheelbase Size | 2960 mm | 2600 mm |
| Fuel Tank Capacity | 66 L | 72 L |
