Complex sentence: Vergne drew closer to Buemi on lap 34, but suspected something broke on his car, causing his steering to become loose, and ran wide leaving turn 13, damaging his vehicle's front-right corner in a collision with the barrier, ending his race.
Split into simpler sentences: Vergne drew closer to Buemi on lap 34, but suspected something had broken on his car causing his steering to become loose. He ran wide leaving turn 13, damaging his vehicle's front-right corner in a collision with the barrier, ending his race.