There are no differences between the two. As long as the used vehicle is purchased from Tesla with less than 50,000 miles you’ll get the 4 year from purchase date and/or 50,000 additional miles, whichever comes first. A vehicle with over 50,000 miles will get you a 2 year from purchase date and/or up to when the odometer hits 100,000 miles. There was no language difference in the warranty I received than that of a new vehicle. However, you should take care to note that this warranty will not cover pre-existing cosmetic defects, paint scratches, scuffs on seats, etc.