1998 Alfa Romeo 166 vs. 2009 Cadillac STS
To start off, 2009 Cadillac STS is newer by 11 year(s). Which means there will be less support and parts availability for 1998 Alfa Romeo 166. In addition, the cost of maintenance, including insurance, on 1998 Alfa Romeo 166 would be higher. At 3,599 cc (6 cylinders), 2009 Cadillac STS is equipped with a bigger engine. In terms of performance, 2009 Cadillac STS (302 HP @ 6300 RPM) has 112 more horse power than 1998 Alfa Romeo 166. (190 HP @ 6300 RPM) In normal driving conditions, 2009 Cadillac STS should accelerate faster than 1998 Alfa Romeo 166. With that said, vehicle weight also plays an important factor in acceleration. 2009 Cadillac STS weights approximately 115 kg more than 1998 Alfa Romeo 166. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2009 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 2009 Cadillac STS. However, in wet, icy, snow, or gravel driving conditions, 1998 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, 2009 Cadillac STS (369 Nm @ 5200 RPM) has 143 more torque (in Nm) than 1998 Alfa Romeo 166. (226 Nm @ 5000 RPM). This means 2009 Cadillac STS will have an easier job in driving up hills or pulling heavy equipment than 1998 Alfa Romeo 166.
Compare all specifications:
| 1998 Alfa Romeo 166 | 2009 Cadillac STS | |
| Make | Alfa Romeo | Cadillac |
| Model | 166 | STS |
| Year Released | 1998 | 2009 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2492 cc | 3599 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 190 HP | 302 HP |
| Engine RPM | 6300 RPM | 6300 RPM |
| Torque | 226 Nm | 369 Nm |
| Torque RPM | 5000 RPM | 5200 RPM |
| Engine Compression Ratio | 10.3:1 | 11.3:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Front | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1520 kg | 1635 kg |
| Vehicle Length | 4730 mm | 5000 mm |
| Vehicle Width | 1820 mm | 1850 mm |
| Vehicle Height | 1420 mm | 1470 mm |
| Wheelbase Size | 2710 mm | 2960 mm |
| Fuel Tank Capacity | 72 L | 64 L |
