sentence1: A key to that effort was the company's introduction of a 10-year, 100,000-mile warranty, meant to reassure buyers that they could trust the Korean company.
sentence2: THEY COULD TRUST THE KOREAN COMPANY REASSURE BUYERS MEANT TO A KEY TO THAT  EFFORT WAS THE COMPANY'S INTRODUCTION OF A 10-YEAR, 100,000 MILE WARRANTLY.