one of 304, 1958 Cadillac Eldorado Brougham

what they left off this call out card is extensive, but in a nutshell it was the most expensive car made that year:  $13,074... for the 1958 Cadillac Brougham. $2000 more than the Rolls Royce that year (Hot Rod Deluxe May 2008, Page 42)
From a feature on this car http://www.johndagostinokustomkars.com/images/58%20Cadillac%20Eldorado%20Brougham%20Kustom%206.jpg

I posted a good gallery of a 1957 Eldorado Brougham a couple years ago http://justacarguy.blogspot.com/2008/05/most-expensive-car-made-in-1957.html