I cannot find the car I purchased

@ryker441 Hey, have you hit Rep level 30? If so, there should be a collection spot on your map in southwest of the map., by the docks.

Grabbing a clip from Youtube, it's shown around this point: https://youtu.be/WRvBc9_T40o?t=47

Also, as alluded to in this post, you may need to install content from the store. 

https://answers.ea.com/t5/Technical-Issues/NFS-HEAT-McLaren-F1-purchased-but-not-able-to-get-it/m-p/9960416#M10350