1962 Cadillac Series Sixty-Two Convertible Coupe. Series 62 Cadillacs rode a 129.5 inch wheelbase and were powered by a 390 cubic inch V-8 rated at 325 horsepower. 16,800 Series 62 convertibles were produced. The asking price was $5,588. The only other convertible in the Cadillac line that year was the upscale Eldorado Biarritz, and at a hefty $ 6,608, only 1,825 found owners.