JPM has said that driving the cars are similar in Champ Cars and F1. The only real difference is that Champ Cars has a friendlier inter-team culture than F1. Furthermore, if experience in other series is irrelevant, why is it that the F1 Superlicense requires a prescribed standard of performance in other open-wheel racing series, and why is it that F1 considers some series to be better preparation than others?
Prior experience in other series do matter. While the technical skills demanded in F1 may be higher and more rigorous than the likes of F3 or GP2, skills in race-craft, awareness, and tactics are interchangeable.
Ok point taken. I was overstating the significance somewhat. But the point still stands that experience at lower levels is not directly transferable to a series that makes higher skills etc demands of it's drivers. Obviously a lot of race craft is gained in lower series, and thank god it is, can you imagine people using Matt Neal overtaking tactics in F1 (oh certain drivers do ).