Granted I haven't seen the DVD, but nothing I've seen in the preview was particularly bad. Sure, if they've gone on tracks they shouldn't have then that's a problem - but if the worst of their driving is on the previews then there isn't one of us who isn't guilty of the same thing. To say otherwise would mean that you literally winch every piece of track ever, or never go wheeling in the wet. Once again, I haven't seen the DVD, only the preview, and if the DVD shows otherwise then I'm happy to stand corrected.