coincidentally this 1948 Cadillac Series 62 by Soutchik was just the car in a 2012 calendar that a coworker has... and I was going to look it up. Now I don't need to!
this car was in the Imperial Casino car collection/ museum http://vizlepcso.blogspot.hu/2008/07/auto-collections-tizenhatodik-rsz.html
it has an interesting history http://justacarguy.blogspot.com/2011/03/1953-cadillac-series-62-rebodied-by.html and the color in daylight is closer to purple.
these two studio shots of the Lincoln are from http://megadeluxe.com