I PAID FOR THE PORSCHE 911 GT2 RS NOT THE GT2

i brought the NFS:Heroes DLC just for the PORSCHE 911 GT2 RS, But after downloading it I get the PORSCHE 911 GT2.

also the PORSCHE 911 GT2 pop a willie when I smoke the tires and pull offf..... EA these are the main 2 things that needs to be fixed asap!