Well that's why I prefer the close fit tolerance of German built cars

I fully understand your desire to make this retrofit "easy" and "bolt on" but I assure you it's just not possible. I've researched this for the last 7 years ever since I seen the MBT 1303 when in Europe.

Sure, it might be able to be done with a gap here and a shim there but these small spaces can be the difference between a safe and fun to drive car or one that is, well you know.

As for me, I'm like Porsche when building my car, I demand excellence!