IMEX 1958 Cadillac Eldorado 1/24 Scale

1957 saw the Eldorado (both the Biarritz convertible and the Seville hardtop) once again present an innovative rear-end design, a low, downswept fenderline capped by a pointed, in-board fin. The rear fenders were commonly referred to as "chipmunk cheeks". This concept was used for two years, but did not spawn any imitators.

Additional Information:
http://www.100megsfree4.com/cadillac/cad1950/cad58s.htm
http://www.conceptcarz.com/vehicle/z10042/default.aspx