There's a new breed of engineers entering the workforce these days.
Back in the bad old days (only a decade ago), we'd have our muscle cars, and compare our weekend's wrenching on Monday morning, carbs, cams, exhaust, etc etc.
The new breed compare their stereos, how good their mechanics are (and how much they spend is staggering compared to a dcade ago).
There IS, however, a quiet type at work who is a real dark horse. He's rebuilding (for the third time) his Skyline GT.
He works on it and programmes his injection himself. Used to be 500hp as a twin turbo, but was lacking in bottom end.
How do you fix the bottom end ?
You draw up the engine bay and ancilliaries in CAD. Draw in a supercharger.
Then draw up the required manifolding.
Submit the drawings to a foundry, and get the parts made up....then put it together and programme it yourself.
He still spends buckets of money, but I am somewhat in awe.