Call a friend. Two people reduce the risk of a disaster. If that won't work then put the rear wheels on your ramps and let most of the air out of the front tires. If more is needed stand on something that gets you where you want to. Can also remove the hood to make it easier.

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X5 4.6 2002 Black Sap, Black interior. 2013 X5M Melbourne Red, Bamboo interior
Dallas