Many cars are largely DIY-friendly already. I do all of the work on our cars except tires, exhaust, bodywork/paint, and manufacturer recalls.
In the last 15 years, I can only recall one time a car went into a shop for a reason other than the above and that was an independent shop where I was too busy to deal with the job. That's across a Mercedes, a Jeep, a Honda CR-V, and Alfa Romeo, and some classic Mustangs.
There are a few marques that are DIY-unfriendly (hello, BMW), but most cars can be effectively DIY maintained. A DIY-friendly car would not be as disruptive as perhaps you think.
True, but even this trend is slowly changing sadly. Remember when fuel filters used to be inline? Sure, it's still DIY, but it's now no longer safe or easy to change them yourself without relatively expensive equipment, and a prayer you don't break a bolt or strap. Ever tried to change a battery on the reintroduced Beetle? As time goes on, drive by wire becomes more prevalent, etc...cars are slowly becoming harder to repair for the shadetree mechanic. Even the things that are still possible have become, in general, more cumbersome.
Perhaps. However I don't think they were built in mind for maximum owner repairability. I suspect they wouldn't be fighting the right to repair so hard otherwise
In the last 15 years, I can only recall one time a car went into a shop for a reason other than the above and that was an independent shop where I was too busy to deal with the job. That's across a Mercedes, a Jeep, a Honda CR-V, and Alfa Romeo, and some classic Mustangs.
There are a few marques that are DIY-unfriendly (hello, BMW), but most cars can be effectively DIY maintained. A DIY-friendly car would not be as disruptive as perhaps you think.