Classic Benz ... JACKED
Law enforcement sources tell us Travolta had parked his 1970 Mercedes-Benz 280SL on the street -- just a couple blocks from a Jaguar dealer.
We're told John was only in the dealership for about 10 minutes -- and when he returned ... his whip had vanished.
John went back to the Jag dealer and waited for police to show up to take a report. We're told there are no witnesses. Travolta's rep hasn't gotten back to us yet.
By the way ... that Benz can sell for as much as $100,000.
And you thought your weekend sucked.