2008 BMW 523 vs. 2007 Cadillac STS
To start off, 2008 BMW 523 is newer by 1 year(s). Which means there will be less support and parts availability for 2007 Cadillac STS. In addition, the cost of maintenance, including insurance, on 2007 Cadillac STS 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 (321 HP @ 6400 RPM) has 146 more horse power than 2008 BMW 523. (175 HP @ 5800 RPM) In normal driving conditions, 2007 Cadillac STS should accelerate faster than 2008 BMW 523. With that said, vehicle weight also plays an important factor in acceleration. 2007 Cadillac STS weights approximately 135 kg more than 2008 BMW 523. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2008 BMW 523 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 2008 BMW 523. However, in wet, icy, snow, or gravel driving conditions, 2007 Cadillac STS, 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 @ 4400 RPM) has 197 more torque (in Nm) than 2008 BMW 523. (230 Nm @ 3500 RPM). This means 2007 Cadillac STS will have an easier job in driving up hills or pulling heavy equipment than 2008 BMW 523.
Compare all specifications:
| 2008 BMW 523 | 2007 Cadillac STS | |
| Make | BMW | Cadillac |
| Model | 523 | STS |
| Year Released | 2008 | 2007 |
| Engine Position | Front | Front |
| Engine Size | 2496 cc | 4565 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 175 HP | 321 HP |
| Engine RPM | 5800 RPM | 6400 RPM |
| Torque | 230 Nm | 427 Nm |
| Torque RPM | 3500 RPM | 4400 RPM |
| Engine Bore Size | 82 mm | 93 mm |
| Engine Stroke Size | 78.8 mm | 84 mm |
| Engine Compression Ratio | 11.0:1 | 10.5:1 |
| Drive Type | Rear | Front |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1500 kg | 1635 kg |
| Vehicle Length | 4850 mm | 4990 mm |
| Vehicle Width | 1470 mm | 1850 mm |
| Vehicle Height | 1850 mm | 1470 mm |
| Wheelbase Size | 2890 mm | 2960 mm |
| Fuel Consumption Overall | 9.3 L/100km | 11.8 L/100km |
| Fuel Tank Capacity | 70 L | 64 L |
