LISBON (Reuters) – Firefighters are struggling to put out a fire that broke out on Wednesday on a vessel carrying thousands of luxury cars, which is adrift off the coast of Portugal’s Azores islands, a port official said, adding it was unclear when they would succeed. The Felicity Ace ship, carrying around 4,000 vehicles including Porsches, Audis and Bentleys, some electric with lithium-ion batteries, caught fire in the middle of the Atlantic Ocean on Wednesday. The 22 crew members on board were evacuated on the same day. “The intervention (to put out the blaze) has to be done very slowly,” Jo…