2005 Buick LaCrosse vs. 2007 Cadillac STS
To start off, 2007 Cadillac STS is newer by 2 year(s). Which means there will be less support and parts availability for 2005 Buick LaCrosse. In addition, the cost of maintenance, including insurance, on 2005 Buick LaCrosse 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 119 more horse power than 2005 Buick LaCrosse. (201 HP @ 5200 RPM) In normal driving conditions, 2007 Cadillac STS should accelerate faster than 2005 Buick LaCrosse. With that said, vehicle weight also plays an important factor in acceleration. 2005 Buick LaCrosse weights approximately 19 kg more than 2007 Cadillac STS.
Because 2007 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 2007 Cadillac STS. However, in wet, icy, snow, or gravel driving conditions, 2005 Buick LaCrosse, 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, 2007 Cadillac STS (427 Nm) has 115 more torque (in Nm) than 2005 Buick LaCrosse. (312 Nm). This means 2007 Cadillac STS will have an easier job in driving up hills or pulling heavy equipment than 2005 Buick LaCrosse.
Compare all specifications:
| 2005 Buick LaCrosse | 2007 Cadillac STS | |
| Make | Buick | Cadillac |
| Model | LaCrosse | STS |
| Year Released | 2005 | 2007 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3786 cc | 4565 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 201 HP | 320 HP |
| Engine RPM | 5200 RPM | 6400 RPM |
| Torque | 312 Nm | 427 Nm |
| Engine Bore Size | 97 mm | 93 mm |
| Engine Stroke Size | 86 mm | 84 mm |
| Engine Compression Ratio | 9.4:1 | 10.5:1 |
| Drive Type | Front | Rear |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1585 kg | 1566 kg |
| Vehicle Length | 5040 mm | 4990 mm |
| Vehicle Width | 1860 mm | 1850 mm |
| Vehicle Height | 1460 mm | 1470 mm |
| Wheelbase Size | 2800 mm | 2960 mm |
| Fuel Consumption | 8.1 L/100km | 8.7 L/100km |
| Fuel Consumption City | 11.8 L/100km | 13.8 L/100km |
| Fuel Consumption Overall | 10.2 L/100km | 11.8 L/100km |
| Fuel Tank Capacity | 64 L | 64 L |
