Hello!
I've added a new map pack, consisting of many street racing maps, as well as one GP map too that is in the pack, and one stunt / challenge map called Going-Down1
Instructions how to install them are in the description - you can download them & play them on your server as well on mine too: 23.88.73.88:28975 - try to vote them by typing /votemap (map name) on my server. If not I can play it for you there if you want.