More than one mile above sea level, located in the heart of Sequoia National Park, is the General Sherman tree. This nearly three-hundred foot tall Giant Sequoia is considered the largest tree in the world, as based on total volume. More impressive than its mass is its age – scientists believe it is between 2,300 and 2,700 years old. Giant Sequoias have prospered over centuries, while countless lesser trees have come and gone, because they posses very unique qualities.
Their foot-thick bark allows them to resist fire, and their shallow roots take advantage of rain showers during periods of drought. And, in an interesting twist of natural survival, their tall canopies effectively block the sun, preventing competitors from taking hold and surviving in the darkened shadows at their base.
The BMW 5 Series is in a similar position. The long-established benchmark mid-size sport sedan finds itself in a constant battle with competitors trying to push it aside in an effort to capture its territory. Instead of resting on its laurels, BMW re-engineers the four-door once every eight years to conform to a changing and ever crowding segment.
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