Originally posted by: LTC8K6
No, that does not explain why the cyclist was on the car to begin with.
The driver hit him, apparently. That seems pretty clear from all accounts. The driver initially hit the cyclist, which started the incident. The cyclist ends up on the car's hood near the driver. Whether the cyclist is on the hood from the impact, or after the impact out of anger, I can't say.
The top was down, so the cyclist could have grabbed the windshield pillar after he was hit.
The driver and the cyclist are arguing, apparently with the cyclist still on the hood after being hit.
I'm guessing that the driver then decides to leave the scene of the initial accident, since the cyclist is apparently not injured, which of course infuriates the cyclist, who won't get off the hood of the car to allow the driver to leave.
The driver decides to remove the cyclist by driving off. He swerves, goes into the wrong lane, onto the curb of the wrong lane, against mailboxes, etc., trying to dislodge the cyclist, who is now clinging to the side of the car from the swerving.
The cyclist eventually falls off and is run over by the Saab's rear wheels.
All subject to clearer info, of course.