2008 Cadillac SRX vs. 2005 BMW 645
To start off, 2008 Cadillac SRX is newer by 3 year(s). Which means there will be less support and parts availability for 2005 BMW 645. In addition, the cost of maintenance, including insurance, on 2005 BMW 645 would be higher. At 4,565 cc (8 cylinders), 2008 Cadillac SRX is equipped with a bigger engine. In terms of performance, 2005 BMW 645 (326 HP @ 6100 RPM) has 6 more horse power than 2008 Cadillac SRX. (320 HP @ 6400 RPM) In normal driving conditions, 2005 BMW 645 should accelerate faster than 2008 Cadillac SRX. With that said, vehicle weight also plays an important factor in acceleration. 2005 BMW 645 weights approximately 260 kg more than 2008 Cadillac SRX. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2008 Cadillac SRX is four wheel drive (4WD), it will have significant more traction and grip than 2005 BMW 645. In wet, icy, snow, or gravel driving conditions, 2008 Cadillac SRX 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, 2005 BMW 645 (447 Nm @ 3600 RPM) has 20 more torque (in Nm) than 2008 Cadillac SRX. (427 Nm @ 4400 RPM). This means 2005 BMW 645 will have an easier job in driving up hills or pulling heavy equipment than 2008 Cadillac SRX.
Compare all specifications:
| 2008 Cadillac SRX | 2005 BMW 645 | |
| Make | Cadillac | BMW |
| Model | SRX | 645 |
| Year Released | 2008 | 2005 |
| Body Type | SUV | Convertible |
| Engine Position | Front | Front |
| Engine Size | 4565 cc | 4392 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 320 HP | 326 HP |
| Engine RPM | 6400 RPM | 6100 RPM |
| Torque | 427 Nm | 447 Nm |
| Torque RPM | 4400 RPM | 3600 RPM |
| Engine Compression Ratio | 10.5:1 | 10.5:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1635 kg | 1895 kg |
| Vehicle Length | 4960 mm | 4830 mm |
| Vehicle Width | 1850 mm | 1860 mm |
| Vehicle Height | 1730 mm | 1380 mm |
| Wheelbase Size | 2960 mm | 2890 mm |
| Fuel Consumption Highway | 11.8 L/100km | 10.2 L/100km |
| Fuel Consumption City | 18.1 L/100km | 15.7 L/100km |
| Fuel Consumption Overall | 14.7 L/100km | 12.8 L/100km |
| Fuel Tank Capacity | 76 L | 70 L |
