OMG this is so much fun, haven't had such a laugh i the last hour or so.
No one can see what year a mac i from on the body alone, need serial.
Ofc you can see what type it is air, pro rpro and so on...
Tell us why you need a mac (don't say it will make it easier for you to get girls, thats not a reason to need a mac. go get the new chrome book then)
you should not care about a mac for a status symbol...
ohh and just because a rumour was valid 2 years ago do not mean that it still is...
think of all the crap and mishaps we could end up with if every rumour would be true down the line...
The best advice to you for getting girls is to spend the money on a gym membership (and use it) and start a good hygiene routine