Got your racing snails in good shape? Powerage has released a complete and massive new Power Speedway set for Poser (not tested in DAZ Studio).
You can get Racing Snails here for Poser and Daz, although they’re not as cool as those in the excellent new movie Turbo. But you could probably have a lot of fun customising them with jet packs and suchlike, scavenged from other content.
And I’d suggest Ollie the toon octopus as the perfect TV race commentator for your racetrack.