I'm not sure if this deal is available in store too, or just online, but it's a pretty good one, I think. The Disney Princess Go Kart Ride On is selling for $49.83 at Target's online shop. There's no indication of what it cost before it went on sale, but it was selling at Deals Direct for $99.95. Oddly, I can't find it online anywhere else at the moment, so I think that's a pretty good price.
Target's Big and Bulky delivery is $49.00 and I'm pretty sure this would count as big and bulky, pretty much annulling the saving. You can use click and collect though, and fetch it from your local store.
So, the Disney Princess Go Kart Ride On has perfectly functional steering, and a large racer seat. The chain drive system is enclosed to protect little fingers and toes, and the whole kart is pedal powered. It is a steel construction with plastic fixtures. The Disney Princess Go Kart Ride On also requires adult assembly, but instructions are included.