2004 BMW 645 vs. 2008 Cadillac STS
To start off, 2008 Cadillac STS is newer by 4 year(s). Which means there will be less support and parts availability for 2004 BMW 645. In addition, the cost of maintenance, including insurance, on 2004 BMW 645 would be higher. At 4,565 cc (8 cylinders), 2008 Cadillac STS is equipped with a bigger engine. In terms of performance, 2004 BMW 645 (322 HP @ 7400 RPM) has 2 more horse power than 2008 Cadillac STS. (320 HP @ 6400 RPM). In normal driving conditions, 2004 BMW 645 should accelerate faster than 2008 Cadillac STS. With that said, vehicle weight also plays an important factor in acceleration. 2004 BMW 645 weights approximately 80 kg more than 2008 Cadillac STS. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2008 Cadillac STS is four wheel drive (4WD), it will have significant more traction and grip than 2004 BMW 645. In wet, icy, snow, or gravel driving conditions, 2008 Cadillac STS 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, 2004 BMW 645 (447 Nm) has 20 more torque (in Nm) than 2008 Cadillac STS. (427 Nm). This means 2004 BMW 645 will have an easier job in driving up hills or pulling heavy equipment than 2008 Cadillac STS.
Compare all specifications:
| 2004 BMW 645 | 2008 Cadillac STS | |
| Make | BMW | Cadillac |
| Model | 645 | STS |
| Year Released | 2004 | 2008 |
| Body Type | Coupe | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4392 cc | 4565 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 322 HP | 320 HP |
| Engine RPM | 7400 RPM | 6400 RPM |
| Torque | 447 Nm | 427 Nm |
| Engine Compression Ratio | 10.5:1 | 10.5:1 |
| Drive Type | Rear | 4WD |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1715 kg | 1635 kg |
| Vehicle Length | 4840 mm | 5000 mm |
| Vehicle Width | 1860 mm | 1850 mm |
| Vehicle Height | 1380 mm | 1470 mm |
| Wheelbase Size | 2790 mm | 2960 mm |
| Fuel Consumption | 9.4 L/100km | 9.8 L/100km |
| Fuel Consumption City | 13.8 L/100km | 15.7 L/100km |
| Fuel Consumption Overall | 11.8 L/100km | 13.1 L/100km |
| Fuel Tank Capacity | 70 L | 64 L |
