The 1980 release die cast snow speeder is one of the most difficult to find vehicles from the entire Star Wars line in mint condition, due to its size, weight and tendency for its blister to yellow and card to crease.
This AFA 85 has practically no issues. The inner support blister is lightly yellowed, but the outer remains entirely crystal clear as shown in pics.
Tellingly, no other examples exist with a grader higher than this one.