This mod is technically impressive. You get to drive the 2003 car, no halo, no drs, no ers, one tyre compound.
The mod also has some issues, which is why it's getting 4 stars:
- the AI is bad. It misses corners and is generally quite slow. I usually play on 104, but I had to crank it up to 110 and still qualified ~6 tenths faster than my teammate.
- the practice programs don't adapt. Basically, you can't complete them, as they expect 2020 results when you have 2003 performance. (I assume nothing can be done about this)
- rev indicator doesn't work properly, it seems to expect 2020 car revs, but you have 2003 car revs. Minor issue if you play manual gears and can go based on sound. No idea how it behaves with auto gears.