There are few luxury cars that can generate much attention upon its release. One of these is the Chrysler 300M which came from a long legacy of Chrysler 300 vehicles that were first seen as early as 1955 (3 equates to the length of the vehicle in meter). In the 50s and the 60s, Chrysler released what was known as the Chrysler 300 letter series. These were the high performance luxury cars that were built in a very limited number. The letter series first came in 1955 with the C-300 or was considered as the 300A. Yearly, the suffix is replaced with one letter of the alphabet skipping I. Thus 1956 brought 300B,1957 gave birth to the 300C and so forth. The 300L was the last from the letter series which was seen in 1965.

After the last 300L, the model took rest for almost four decades. In 1999, the 300M was introduced continuing what Chrysler have left in the 60s though it was not actually part of the series. The new 300M came with a front wheel drive V-6 engine and rode on the Chrysler LH platform.

The Chrysler 300M was considered a redesigned vehicle with more exciting features and impressive design. Upon its release, it received the Motor Trend magazine's Car of the Year award and the Car and Driver magazine's Ten Best list. The 300M was produced until 2004 when it was refreshed and renamed to Chrysler 300 removing the suffix M.