Tyga's Ferrari Repo'd While Bentley Shopping!

Tyga reunited with his old pal the repo man, who made off with the rapper's Ferrari at perhaps the most embarrassing time possible ... right in front of Kylie Jenner.

We're told Tyga hopped in his fancy red sports car Tuesday with Kylie and drove to the Bentley dealership in Calabasas. Little did he know that while they were checking out new whips ... his current one was about to get swiped.

Sources on the lot tell us the repo man showed up armed with a spare key for the Ferrari, jumped in, started it up and headed down the nearest freeway.

We're told Tyga missed a couple of his lease payments, and the lessor wasn't taking any chances.

Don't worry, Kylie and Tyga got a ride home from one of his homies.