I notice you plan on doing flat four engines,
will these include aircooled beetle flat fours and porsche air cooled flat sixes? I presume you’ve already thought of the water cooled version like subaru etc, but please dont forget the classics!
Would be great to plan a hefty beetle engine that has some likeness to the hotrodding of them in real life GSF (german swedish and french) Car Parts have a nice collection of aftermarket upgrades that i love flicking through from time to time