The difference in the Penner R and GT maps (all markets) I downloaded from TuneECU.net is not at the high end. Below is a picture of the comparison of the F1 tables. The colored area is where the difference is. This makes no sense to me.
For the stock maps, there are no differences in any of the tables between the GT and R or between US and All Markets maps. They’re all the same.
For the Penner maps, there are differences between the All Markets and US maps. Especially the ETV tables in the GT all markets map. ETV1 should be rain (most restricted), ETV2 (road) and ETV3 (sport). In the Penner GT all markets map, ETV2 is the rain mode table. This is not the case with the Penner R all markets map.
There’s some weirdness with the Penner all markets maps, especially the GT.