Not SID
although Sid has WIP mod that utilizes DRS, Enhanced Motec and extra gears.
Most of it is private due to everyone requiring permission, which is a shame because enhanced DTM 2018 is like the best mod for GTR2. However, if you search Trackaholics "for Crew Chief" you'll find some public cars. They are a bit outdated, but most work is good on them still.
BTW before GTR233 went quiet we worked on car body rain drops and got them working on DTM 2018 cars. Let's hope rain drops for base HQ cars will get released one day.