2009 Cadillac STS vs. 2005 Pontiac Grand Prix
To start off, 2009 Cadillac STS is newer by 4 year(s). Which means there will be less support and parts availability for 2005 Pontiac Grand Prix. In addition, the cost of maintenance, including insurance, on 2005 Pontiac Grand Prix would be higher. At 3,786 cc (6 cylinders), 2005 Pontiac Grand Prix is equipped with a bigger engine. In terms of performance, 2009 Cadillac STS (302 HP) has 102 more horse power than 2005 Pontiac Grand Prix. (200 HP). In normal driving conditions, 2009 Cadillac STS should accelerate faster than 2005 Pontiac Grand Prix. With that said, vehicle weight also plays an important factor in acceleration. 2005 Pontiac Grand Prix weights approximately 17 kg more than 2009 Cadillac STS.
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, 2005 Pontiac Grand Prix, 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) has 71 more torque (in Nm) than 2005 Pontiac Grand Prix. (298 Nm). This means 2009 Cadillac STS will have an easier job in driving up hills or pulling heavy equipment than 2005 Pontiac Grand Prix.
Compare all specifications:
| 2009 Cadillac STS | 2005 Pontiac Grand Prix | |
| Make | Cadillac | Pontiac |
| Model | STS | Grand Prix |
| Year Released | 2009 | 2005 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3600 cc | 3786 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 302 HP | 200 HP |
| Torque | 369 Nm | 298 Nm |
| Engine Compression Ratio | 3.7:1 | 9.4:1 |
| Drive Type | Rear | Front |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1560 kg | 1577 kg |
| Vehicle Length | 5000 mm | 5040 mm |
| Vehicle Width | 1850 mm | 1830 mm |
| Vehicle Height | 1470 mm | 1430 mm |
| Wheelbase Size | 2960 mm | 2810 mm |
| Fuel Consumption Highway | 9.2 L/100km | 7.8 L/100km |
| Fuel Consumption City | 14 L/100km | 11.8 L/100km |
| Fuel Consumption Overall | 11.9 L/100km | 10.2 L/100km |
| Fuel Tank Capacity | 64 L | 64 L |
