I think with most all wheels drive cars you use both the wheels speeds and the gps, I agree the gps will end up useless in some situations and would be interesting to see how the system would react at those times
The mrs has the Kona N and it’s been great, I’m looking at the i30N with the manual and just not sure as the last manual Hyundai I drove was an excel and felt terrible
The only other things I’d want would be more DPI/SPI to measure the 4 wheel speeds and do traction control. not sure my car will make enough power for it to be a real issue though
I looked at it and worked out I’d either need to buy a nexus plus a pdm due to the the fact the nexus uses 3 of the 25amp out puts or just the pdm if I kept the elite in there