Hi! New to this forum. Want to know how to choose between the Mini Extended Service Contract categories of "L, XL, XXL" Leased brand new 2013 Countryman - lease is up next month. Will purchase this car. Financed auto loan for 5 years. Kept up with maintenance. LOW mileage 16K+ over 3 years of use (2013-2016). Just not sure which package to pick, if any. Thoughts??