Ease of Fixes and Potential of Engines

Hi, after working on my 1999 Jimmy to replace the spark plugs (and cutting up my hands in the process), I was wondering if there was going to be any ratings or anything related to how easy problems are to fix on your created cars, (maybe through body shape/size, engine size vs. the bay size or perhaps materials maybe) even though spark plugs swaps and oil changes might not be in the game, there part of owning a car, and it might turn away potential buyers. I found a quote form motortrend saying:
“Out of all of my 36 cars, the hardest car I have ever had to work on, is my newest car to my garage; my 98 Firebird v6. The thing took three hours to change plugs and wires, it was terrible. It would not be so hard, if the engine was not halfway under the dashboard. The easiest car I have ever owned was my 86 F150 with a straight 6. The thing was so simple, and never gave one problem”
I was wondering if inline 6’s really are easier to work on so that if u have an I-6 in your car vs. a V-6; it would make fixes easier and then boosting your car model rating maybe?

And i was also wondering if how much potential an engine has would be figured in some how. I know a lot of people/mechanics say that the LS1 is one of the best engines in terms of being able to build and improve it. And my Father says that back in the day HEMI engines had tons and tons of potential to be build on. Just a couple of questions/suggestions, i have no idea if or how they could be calculated, but hopefully it helps!

At the very least we’ll make cars with cramped engine bays/mid engine layouts etc more expensive to service, not sure about the other stuff as yet though.

Ok, at least it’s something! And thanks for the quick reply

if you think l6 engines are easy to work on, try working on a bmw with an l6 halfway under the dashboard.

I didn’t say they were easier, That guy did. I was just wondering if they really were or not.