1) Race track: "SF_Muscle" have bug with swithched car.
Btw I'm playning this race in 2012 and 2013 year i guess and not saw such problems there.
And i see that 1 top are very good and was set without that bug.
Maybe that bug happened after added ghostmode but idk.
You can check video:
https://www.youtube.com/watch?v=iXNWxcoRENs&feature=youtu.be btw it's happened only with sabre after 20 checpoint.
2) Race track: "7777" it's good race from MTA. But need change "finish checkpoint" because he are under water... You just can load this race and see it. In MTA not have such problem because different cps. So just change last cp and problem will be solved. But about first race idk..