Joe Jonas Takes Sophie Turner for a Ride in His Vintage Red Corvette

Joe Jonas made Prince proud on Saturday ... and probably his girlfriend, Sophie Turner, too.

The couple was spotted cruising around Malibu in Joe's little red vintage Corvette ... this after hiking together in L.A. earlier the same day.

Eyewitnesses tell us Joe stopped off for gas at PCH and Cross Creek, and got some girls at the gas station to lose their minds once they realized who he was.