I agree with Tim that Autosport has definitely gone off since it got its new editor, but then it does seem to go through phases where it isn't as good as it could be. One point recently is who let an issue go out containing the truly terrible pictures from Goodwood. There was a whole page of pictures that looked like they'd been taken by freeze framing a video - not good
However, in terms of general mags covering as many series as possible, Autosport is the best around. I do buy Motoring News when I can, but it's very rarely that I can find it on sale in the shops around here. I get Autosport on subscription now, but prior to that I had to get the newsagent to get it in especially for me each week because it just doesn't seem to make it to the newsagents here, although saying that, W H Smith do seem to be stocking it on a much more regular basis.