2005 BMW 645 vs. 2006 Cadillac SRX
To start off, 2006 Cadillac SRX is newer by 1 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 4,392 cc (8 cylinders), 2005 BMW 645 is equipped with a bigger engine. In terms of performance, 2005 BMW 645 (326 HP @ 6100 RPM) has 70 more horse power than 2006 Cadillac SRX. (256 HP @ 6500 RPM). In normal driving conditions, 2005 BMW 645 should accelerate faster than 2006 Cadillac SRX. With that said, vehicle weight also plays an important factor in acceleration. 2005 BMW 645 weights approximately 6 kg more than 2006 Cadillac SRX. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2006 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, 2006 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 105 more torque (in Nm) than 2006 Cadillac SRX. (342 Nm @ 2800 RPM). This means 2005 BMW 645 will have an easier job in driving up hills or pulling heavy equipment than 2006 Cadillac SRX. 2006 Cadillac SRX has automatic transmission and 2005 BMW 645 has manual transmission. 2005 BMW 645 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2006 Cadillac SRX will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2005 BMW 645 | 2006 Cadillac SRX | |
| Make | BMW | Cadillac |
| Model | 645 | SRX |
| Year Released | 2005 | 2006 |
| Body Type | Convertible | SUV |
| Engine Position | Front | Front |
| Engine Size | 4392 cc | 3562 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 326 HP | 256 HP |
| Engine RPM | 6100 RPM | 6500 RPM |
| Torque | 447 Nm | 342 Nm |
| Torque RPM | 3600 RPM | 2800 RPM |
| Engine Bore Size | 92 mm | 94 mm |
| Engine Stroke Size | 83 mm | 85 mm |
| Engine Compression Ratio | 10.5:1 | 10.2:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 250 km/hour | 201 km/hour |
| Acceleration 0-100mph | 6.1 seconds | 8.1 seconds |
| Drive Type | Rear | 4WD |
| Transmission Type | Manual | Automatic |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1895 kg | 1889 kg |
| Vehicle Length | 4830 mm | 4960 mm |
| Vehicle Width | 1860 mm | 1850 mm |
| Vehicle Height | 1380 mm | 1730 mm |
| Wheelbase Size | 2890 mm | 2960 mm |
| Fuel Consumption Overall | 12.8 L/100km | 14.7 L/100km |
| Fuel Tank Capacity | 70 L | 76 L |
