2009 BMW X6 vs. 2007 BMW 523

To start off, 2009 BMW X6 is newer by 2 year(s). Which means there will be less support and parts availability for 2007 BMW 523. In addition, the cost of maintenance, including insurance, on 2007 BMW 523 would be higher. At 2,977 cc (6 cylinders), 2009 BMW X6 is equipped with a bigger engine. In terms of performance, 2009 BMW X6 (300 HP @ 5800 RPM) has 125 more horse power than 2007 BMW 523. (175 HP @ 5800 RPM). In normal driving conditions, 2009 BMW X6 should accelerate faster than 2007 BMW 523. With that said, vehicle weight also plays an important factor in acceleration. 2009 BMW X6 weights approximately 580 kg more than 2007 BMW 523. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.

Because 2009 BMW X6 is four wheel drive (4WD), it will have significant more traction and grip than 2007 BMW 523. In wet, icy, snow, or gravel driving conditions, 2009 BMW X6 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, 2009 BMW X6 (407 Nm @ 1400 RPM) has 177 more torque (in Nm) than 2007 BMW 523. (230 Nm @ 3500 RPM). This means 2009 BMW X6 will have an easier job in driving up hills or pulling heavy equipment than 2007 BMW 523. 2009 BMW X6 has automatic transmission and 2007 BMW 523 has manual transmission. 2007 BMW 523 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2009 BMW X6 will be easier to drive especially in heavy traffic.

Compare all specifications:

2009 BMW X6 2007 BMW 523
Make BMW BMW
Model X6 523
Year Released 2009 2007
Body Type SUV Sedan
Engine Position Front Front
Engine Size 2977 cc 2497 cc
Engine Cylinders 6 cylinders 6 cylinders
Engine Type in-line in-line
Valves per Cylinder 4 valves 4 valves
Horse Power 300 HP 175 HP
Engine RPM 5800 RPM 5800 RPM
Torque 407 Nm 230 Nm
Torque RPM 1400 RPM 3500 RPM
Engine Bore Size 84 mm 78.8 mm
Engine Stroke Size 89.6 mm 82 mm
Engine Compression Ratio 10.2:1 11.0:1
Fuel Type Gasoline - Premium Gasoline - Premium
Top Speed 240 km/hour 235 km/hour
Acceleration 0-100mph 6.7 seconds 8.8 seconds
Drive Type 4WD Rear
Transmission Type Automatic Manual
Number of Seats 4 seats 5 seats
Number of Doors 5 doors 4 doors
Vehicle Weight 2145 kg 1565 kg
Vehicle Length 4880 mm 4850 mm
Vehicle Width 1990 mm 1850 mm
Vehicle Height 1700 mm 1470 mm
Wheelbase Size 2940 mm 2890 mm
Fuel Consumption Overall 10.9 L/100km 8.5 L/100km
Fuel Tank Capacity 85 L 70 L


 

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