I'm still looking forward to watch Wheels.
Ha, that's an obscure one. It's also on my mini-series-to-watch list even though I find most of the Arthur Hailey movies a bit disappointing.
His novels are well-structured and detailed and very interesting but there isn't much that the actors can do with his characters. Airport could fix that with the physical action/disaster plot but I found The Moneychangers quite boring, yes even with Joan Collins in it.
The automobile industry also could have worked as a backdrop for a Dallas-style soap opera, which was even more apparent in Harold Robbins' novel/movie The Betsy.
Actually, I'm surprised that they never gave it a try (well, there was Knots Landing Motors).
Generally speaking, it's hard for any movie to be as intriguing as the novel and the success of it mostly depends on great casting and atmosphere (e.g. Thorn Birds, North & South, East Of Eden, Mistral's Daughter) so maybe it is more interesting to read those novels after you've watched the movies.
I did it for more practical reasons, because without re-runs or movies-to-buy it was the only way to enjoy the fabulous mini-series again.
I see that you're from Germany and that reminds me of a German mini-series I'd love to re-watch.
Unfortunately, German audio without sub-titles is not doable for me.
Anyway, back to the novels, there are still some titles in my most-wanted list.
Fred Mustard Stewart - The Mannings, Century, A Rage Against Heaven, The Savages Family series
John Jakes - The Crown Family Saga, The Gods Of Newport
Jonathan Black - The World Rapers, The House On The Hill
Needless to say, all these stories are about wealthy, powerful families and all kinds of evil megacorps with sex and murder and shocking plot twists.