I have not done any looking at the moment, but I know that an award used to be given to the auto engineers that designed the easiest cars to work on. This was back in the 60's, though.

I think the sponsor of this award was Chilton since they sort of had the lock on repair manuals for the non-dealership shops.

I do remember that Chrysler won the award for several years running in the 60's since there was so much room in the engine bay. The only exception was the Hemi, but most Chrysler products, like the Dart or Coronet, has lots of underhood room since the biggest engine you could get was a 440 c.i. but for the most part the biggest engine was a 383. Since many of the cars had the 225 slant six they were incredibly easy to work on.

It might be time for someone to start hosting such an award again.