Personally, I would not add caliper covers to any car. They just trap dirt/grime and moisture that could lead to corrosion issues in the future. Depending on the type used, they may also impact how much heat can be dissipated. Then there is the "what happens if the clips fail", you'll have this chunk of metal that could come into contract with the wheel and cause damage.
This is one of those topics, like throttle body spacers, were you'll a lot of mixed reviews.