How to use "severely" in a sentence

At the corner, he ignored the stop sign and swung the car hard to the left, only tapping the brakes once, severely testing the Chevy's suspension.

Tall lampposts were arrayed across this featureless plain, casting dim, reddish light that was severely directed downward to attract as little attention as possible from aircraft that strayed out of the usual flight patterns and from anyone backpacking elsewhere in these remote mountains