Article: "Now it’s an arms race between OEMs locking down chips and tuners trying to crack them"

[Syphon]

Interesting reading:

Like a cheat code for your car: We investigate ECU tuning

Now it's an arms race between OEMs locking down chips and tuners trying to crack them.

arstechnica.com

"For the B5 Audi S4, there were only 10 to 15 things that needed adjustment, APR said. By contrast, the 2005 Volkswagen GTI required 90. “Current production stuff? We’re well-north of a couple hundred changes,” said Gorton—about 225 for the 2022 GTI and over 400 for the current Porsche 911 Carrera."

 

[tracktoy]

And I am sure they are now working on Hybrid (which i am guessing are the hardest as you have two different power sources to handle) and All electric motors to bring more power and control power usage.