Use the Quick ride shortcut (default SHIFT + V) to instantly be in your favourite vehicle from your inventory, fuel and ammo ready for use. Double tapping will instead put you in the second vehicle that would be chosen

Use the Quick ride menu (action bar or default to ALT + V) to choose what vehicle will be used in case you have multiple as well as witch fuel and munitions will be equipped.

Some settings are available like choosing if you want to handle trains when standing on rail.

Thanks to Krydax for the mod idea!