Aerial Modification
{4}{W}
Enchantment -- Aura
Enchant creature or Vehicle
As long as enchanted permanent is a Vehicle, it's a creature in addition to its other types.
Enchanted creature gets +2/+2 and has flying.
AEther Meltdown
{1}{U}
Enchantment -- Aura
Flash (You may cast ~this~ any time you could cast an instant.)
Enchant creature or Vehicle
When ~this~ enters, you get {e}{e} (two energy counters).
Enchanted creature gets -4/-0.
Siege Modification
{1}{R}{R}
Enchantment -- Aura
Enchant creature or Vehicle
As long as enchanted permanent is a Vehicle, it's a creature in addition to its other types.
Enchanted creature gets +3/+0 and has first strike.