Add the ability to sort vehicles in the database by things like type, rarity, speed, jobs, capacity, date added, price (to name a few)
This would help beginners and indecisive people decide on the aircraft they want to buy and in general makes browsing the vehicle database much nicer (since you can filter out what you don't wanna look for).
cons:
i'm not a developer but i imagine if the coding process required something like making specific tags with information for each aircraft it might be very hard
