Only 1,000 miles on my 2012 FIAT 500 Sport, manual transmission - have driven manual transmission cars for over 30 years. Last night was stopped at a red light. I put the car in first, released the clutch, put foot on the gas...nothing but engine rev. Thought maybe I didn't have it in first, tried again, same result. I put the car in neutral, turned it off and "rebooted" (restarted), put the car into first, and it worked just fine. Any ideas?