GTA Online enjoys one of the most active and passionate community among pretty much all major AAA games these days. The Subreddits and internet forums are teeming with life, as players endlessly discuss the best strategies, engage in speculation regarding future content or rant about hackers (well, not anymore).
Of course, among all those and fevered image sharing, they also often talk about features they would like to see in the game. Since about 99.9% of the playerbase actually has no experience as game developers, most of those ideas only actually seem good on paper — or in the author's mind.
However, every now and then we come across some ideas which are actually worth some merit — hell, even Rockstar has implemented some fan suggestions into the game. An example of this is the weapon locker which was finally added to the game in the recent Further Adventures in Finance and Felony DLC.

Ever since the conception of the series, vehicles have always been a major aspect — especially cars. After all, "Auto" is in the name of GTA. Car customization has hit its peak in 5, with the most number of vehicles available as well the widest possible range of modifications. The newest installment also features a great variety of visual options, crew emblems and a few cars can also be turned into flashy lowriders.
There are armored cars, turreted cars, luxurious cars, fast cars, cheap cars and expensive cars. There are countless spoilers, engine mods, body mods, paint jobs and lighting options. the number of possible combinations seems almost infinite, making it possible for no two player vehicles to be the same in a given session.