Thanks.
I don't know is the word "ends" needed. I kinda like it without.
battered = bettered. That was not a typo, I meant that the best drivers took their upgraded cars to the league (cars are differently named).Shall we go with upgraded or enhanced instead?
other orrections acceted. 
Even though, not sure does the "contains tracks" sentence have to be so long?
And instead th lines red bullet pointsshould be used.
Without "ends", or some other verb, the sentence doesn't read well. It needs a coma at the very least.
I thought you meant battered, as in worn, broken down, etc. You know, like from all the abuse they received on the track? Bettered isn't a word that we use very often in the US, so it does sound off (to me). But that's more of a cultural difference than anything. It makes sense, just might not work for all English speaking regions.
With the last sentence you sort of have the same issue as the 1st. It's a little stunted.
Contains 5 new tracks in new Ace League that are tough for even the veterans:There's no reason to use "new" twice in that sentence, and if we did do it that way, then there should at least be a "the" before the 2nd new. As in "the new Ace..."
The rest of what I changed/added isn't fixing any grammar issues or anything like that, I just thought it read better that way
