Using the same basic body, Packard introduced three models. At the top of the price-prestige ladder was the Patrician or 400. The next rung down was the 300, and the entry-level Packard was called the 200.
This post compares styling for the 200 and 300 lines.
The 200 was smaller than the other '51 Packards, having a wheelbase of 122 inches (3099 mm) as opposed to 127 inches (3226 mm). It has a less-powerful inline eight cylinder motor. There also were some noticeable styling cues that set 200s apart, and these are dealt with below.
here and here. Its effect on the styling of 300 and 400 series Packards was to give the cars a noticeably lighter appearance than that shown above for the 200 model.