2007 Cadillac STS vs. 2006 Subaru Legacy
To start off, 2007 Cadillac STS is newer by 1 year(s). Which means there will be less support and parts availability for 2006 Subaru Legacy. In addition, the cost of maintenance, including insurance, on 2006 Subaru Legacy would be higher. At 4,565 cc (8 cylinders), 2007 Cadillac STS is equipped with a bigger engine. In terms of performance, 2007 Cadillac STS (320 HP @ 6400 RPM) has 157 more horse power than 2006 Subaru Legacy. (163 HP @ 5600 RPM). In normal driving conditions, 2007 Cadillac STS should accelerate faster than 2006 Subaru Legacy. With that said, vehicle weight also plays an important factor in acceleration. 2007 Cadillac STS weights approximately 136 kg more than 2006 Subaru Legacy. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2006 Subaru Legacy is four wheel drive (4WD), it will have significant more traction and grip than 2007 Cadillac STS. In wet, icy, snow, or gravel driving conditions, 2006 Subaru Legacy 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, 2007 Cadillac STS (427 Nm @ 4400 RPM) has 201 more torque (in Nm) than 2006 Subaru Legacy. (226 Nm @ 3600 RPM). This means 2007 Cadillac STS will have an easier job in driving up hills or pulling heavy equipment than 2006 Subaru Legacy.
Compare all specifications:
| 2007 Cadillac STS | 2006 Subaru Legacy | |
| Make | Cadillac | Subaru |
| Model | STS | Legacy |
| Year Released | 2007 | 2006 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4565 cc | 2457 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | boxer |
| Horse Power | 320 HP | 163 HP |
| Engine RPM | 6400 RPM | 5600 RPM |
| Torque | 427 Nm | 226 Nm |
| Torque RPM | 4400 RPM | 3600 RPM |
| Engine Bore Size | 93 mm | 99.5 mm |
| Engine Stroke Size | 84 mm | 79 mm |
| Engine Compression Ratio | 10.5:1 | 10.0:1 |
| Drive Type | Rear | 4WD |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1566 kg | 1430 kg |
| Vehicle Length | 4990 mm | 4670 mm |
| Vehicle Width | 1850 mm | 1740 mm |
| Vehicle Height | 1470 mm | 1430 mm |
| Wheelbase Size | 2960 mm | 2680 mm |
| Fuel Consumption Highway | 8.7 L/100km | 8.1 L/100km |
| Fuel Consumption City | 13.8 L/100km | 10.7 L/100km |
| Fuel Consumption Overall | 11.8 L/100km | 8.2 L/100km |
| Fuel Tank Capacity | 64 L | 64 L |
