wrote:

> Sometimes I see a car in front of me stopped at the light. When the
> light turns green, the car in front of me will move backwards a few
> inches before going forward. I've never seen an automatic car do
> that, so those cars must be manual. Why do they do that? They could
> collide with you if you stopped less than a few inches from them.

That might happen if the road's uphill and the driver's not that good with the
clutch.

Graham