'Back To The Future' Day DeLoreans for Hire Thanks to Lyft & Verizon

Lyft couldn't make flying cars happen in time for "Back to the Future" Day but it created the next best thing -- McFly mode, where customers get carted around NYC in a DeLorean!!

A rep from the rideshare company tells TMZ they searched high and low for the vintage whips Marty McFly and Doc Brown rode into the future -- which is today, Oct. 21, 2015.

We're told Lyft and Verizon shipped the cars to NYC, along with their owners, who drove customers around town ... some even dressing up like McFly or Doc. Best of all -- the rides are free ... but good luck getting one.

Lyft wants to maximize customer enjoyment, so rides are limited to around 15 minutes.

Keep it under 88 MPH, drivers!