on my lowered G i smashed the lower engine cover or shroud as you guys call it running over a hubcap which i thought i could clear...
otherwise im pretty careful with parking lot entrance ramps/curbs and stuff and dont scrape. slowing down and approaching on an angle.
but i do survey roads in my dd before taking my G and Z anywhere. my dd's lowered on swifts. no scrapeage
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i think mr.onzedge has a point about driver skill.
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but then i did damage my G's lower shroud.
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it's all fixed now.