Okay, the basic info is in the Sid Halley page on Wiki (and you can find the series online here, if you like.

It's also from the copy of Whip Hand that I have - not only is it dedicated to Mike Gwilym and Jacky Stoller "with gratitude and affection" but the jacket states "The author explains that his interest in Sid Halley was resurrected while he watched The Racing Game, a series based on the character, being made by Yorkshire Television."