puffy on 28 February 2010
Having played the demo, I feel that Mario Kart has tighter control and gameplay in general but Sonic Racing is less about luck than Mario Kart is.
Also the OP says it makes Mario Kart look last gen then mentions character unlocks and over 20 tracks, Mario Kart has character unlocks and kart/bike unlocks as well as over 30 tracks on top of the battle courses.
Essay Pro