Kevin Hart -- Hyperloop High-Speed Transport Ain't for Black People

Kevin Hart isn't putting his ass on the line ... just to shave 30 minutes off a trip -- not if he has to ride an 800 mph aluminum pod to do it!!

We asked Kevin last night in Hollywood if he'd jump at the chance to ride the "Hyperloop" -- pods that will float through tubes at high-speed ... and could blaze from LA to San Fran in a half hour.

Elon Musk, co-founder of Tesla, just unveiled plans for the "Hyperloop" -- which sounds like the kinda thing celebs would totally dig ... after all, time is money, right?

Not even close. Not for Kevin anyway.