A good friend's VW bus wouldn't start after camping overnight, so he called the dealer about 60 miles away. Dealer arrived with a 'mechanic' and tried to get it going, ran the battery down, jumper cables didn't help, so they thought they'd use a tow strap to tow it back to the shop. On the way back, the 'mechanic' thought he'd try to bump start it....at 50 mph. Eventually the clutch gave up the ghost.
Final verdict: new clutch and oh yes, a distributor cap to replace the cracked one.
Les