Mercedes-Benz SL-Class Convertible

Starting MSRP: $94,800
Five-year cost of ownership: $168,203

The top-shelf AMG versions of Mercedes’ SL-Class boost average cost of ownership for all SL version, particularly the priciest and fastest SL65 AMG. With that variant out of the equation, the ownership costs for the remaining three SL models — the SL550, SL55 AMG and SL600 — average out to $150,895. But even with five-year costs totaling a lofty $220,128, the SL65 AMG receives a “good” value rating from Vincentric when compared to other brutally expensive cars in its category.