I would absolutely not buy this before it is released. The developer is team 6, makers of Flatout 3, Glacier 2/3, and Flatout for the Wii.
I own both Flatout for the Wii and Flatout 3 and the graphics really have no difference if that tells you anything.
Their most recent affair is Monster Jam Crush It!: https://www.youtube.com/watch?v=3igY5VYJdwQ
I've played every console game they've made, and I can tell you right now the handling is atrocious.
The publisher is Maximum Games. They've made such great games as: Alekhine's Gun, Lichdom: Battlemage, Infinite Air, Rugby 15, and Loading Human Chapter 1. Their "diamond in the rough" is Divinity.
I hate to say it, but the best this game could be is a 6/10. But with a developer/publisher combo this atrocious, we may be getting ready for the consoles worst release yet.