1. S-Class could be cool for cars that could be only unlocked like those from NFS World's achievements, that is after many time and effort, but I'd see them not tunable performance wise (except nitrous). It would cover cars like Veyrons, Koenigseggs and such in my opinion.
2. URL, as deadboy said
3. Barely possible, it's on todo but I don't believe that it will come before 2019 and it will be pretty basic in my opinion
4. Good idea
2. URL, as deadboy said
3. Barely possible, it's on todo but I don't believe that it will come before 2019 and it will be pretty basic in my opinion
4. Good idea