Need a racer for my local track.

[bl-is-future]

Here is my local track - http://www.larrysperformancercs.com/...ck_Information

Now for some advice from you guys that race.
I have no idea what any of the terms mean on the track info page. Though i will be a rookie racer i still want the fastest class i can in because i am a good driver and like speed. I realize i may not win but i'm in it for the fun for the time being.
Next is i want to do the 1/10 scale with jumps but not sure what class that is and i still need a vehicle. Also like i said i like to mod my vehicles so i need to know what is legal to put in and what is not.

i will research a lot of this but mainly want your opinions on what is the best route to take.
Thinking on the B44 as a vehicle though (i like 4wd)