Most younger siblings get old hand-me-downs, but French Montana just gave his little brother Zack a brand spanking new BMW 7 series.
The car came fully loaded with a motion controlled dashboard ... volume on the car's stereo is controlled by moving your hand. There's video above in case you need a visual.
It wasn't even Zack's birthday. He's the prez of French's Coke Boys Entertainment, and we're told French wants his team to look fly.
In case you're wondering ... $150k.