2004 BMW 630 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 630. In addition, the cost of maintenance, including insurance, on 2004 BMW 630 would be higher. At 4,565 cc (8 cylinders), 2008 Cadillac STS is equipped with a bigger engine. In terms of performance, 2008 Cadillac STS (320 HP @ 6400 RPM) has 66 more horse power than 2004 BMW 630. (254 HP @ 6600 RPM) In normal driving conditions, 2008 Cadillac STS should accelerate faster than 2004 BMW 630. With that said, vehicle weight also plays an important factor in acceleration. 2004 BMW 630 weights approximately 141 kg more than 2008 Cadillac STS.
Because 2008 Cadillac STS is four wheel drive (4WD), it will have significant more traction and grip than 2004 BMW 630. 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, 2008 Cadillac STS (427 Nm @ 4400 RPM) has 127 more torque (in Nm) than 2004 BMW 630. (300 Nm @ 2500 RPM). This means 2008 Cadillac STS will have an easier job in driving up hills or pulling heavy equipment than 2004 BMW 630.
Compare all specifications:
| 2004 BMW 630 | 2008 Cadillac STS | |
| Make | BMW | Cadillac |
| Model | 630 | STS |
| Year Released | 2004 | 2008 |
| Body Type | Convertible | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2983 cc | 4565 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 254 HP | 320 HP |
| Engine RPM | 6600 RPM | 6400 RPM |
| Torque | 300 Nm | 427 Nm |
| Torque RPM | 2500 RPM | 4400 RPM |
| Engine Compression Ratio | 10.7:1 | 10.5:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | Rear | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1776 kg | 1635 kg |
| Vehicle Length | 4830 mm | 5000 mm |
| Vehicle Width | 1860 mm | 1850 mm |
| Vehicle Height | 1380 mm | 1470 mm |
| Wheelbase Size | 2730 mm | 2960 mm |
| Fuel Consumption | 7.5 L/100km | 9.8 L/100km |
| Fuel Consumption City | 14.2 L/100km | 15.7 L/100km |
| Fuel Consumption Overall | 9.9 L/100km | 13.1 L/100km |
| Fuel Tank Capacity | 70 L | 64 L |
