Dell Precision vs Latitude

Hello,

Just a question in reference to these two series.

I do know some of the E Series are basically one in the same except for name for the most part. I would like to know all that are compared to each other.

I do know this:

Dell Precision M2400 is the same as Latitude E6400

Dell Precision M4400 is the same as Latitude E6500

Dell Precision M4500 is the same as Latitude E6510

Are there any others?

I recently when I found out this information wanted to see if I can create a solid red M4400. So I purchased a broken E6500 from eBay. Used the part number of everything that is red from the E6500 or I may need (example bezel since I want a webcam) and made it red which of course the bezel and palmrest is not red. Created a red M4400. I am looking to do the same for the others. You may ask why.....It basically me having fun and seeing what I can do.

May be a stupid question to ask. I just like to things like this.

Thanks in advance.