It would be great if they made a Top Gear-inspired party mode with odd AI behavior, pre-broken cars, mid-race objectives, historic race recreations - maybe even 2 vs. 2 team challenges like on the episode where they race the Germans in the stacked cars - or otherwise worked the variety and car-centric design of the show into the career and online somehow as small distractions between long races.
Nothing fancy, just tweaked game settings, some event poster images, and audio clips of Jeremy saying things like "...except each driver has to set their quarter-mile time blind-folded!"
...but it's probably just Jeremy talking about the cars in the Kinect showroom mode and the track since that's all they've really announced.