Minecarts Maintain Velocity in Air

Currently, when a Minecart is driven off of a rail, it just kind of slows down and falls to the ground. I think it would create a lot of interesting gameplay opportunities if Minecarts maintained horizontal velocity when they are not touching the ground. This would allow for more interesting railroads, incorporating ramps and jumps over pits, or sending a minecart skipping over the water on soul sand bubble columns. Overall, it's not a necessary addition but it would be pretty sick.