The proving ground at SEMA appends a bit in the way of mobile action to what's primarily a static show. Of course, there are the rock crawling exhibitions in the parking lot, and they've got some midnight drags going on in front of the convention center tonight, but for a quick glimpse of some tire-smoking autocross action or a drifting demo, the proving ground between the Center and South Halls is where the vehicles-in-motion stuff goes down.
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