Mazdas tech still uses sparkplugs at certain rpm

Nissans engine is a joke in complexity far removed from the A series

personally one of my old time fave engines is the Buick "nailhead" v8
it produced 1lbs of torque per cubic inch at low rpm, no direct injection,
no complicated circuitry or things that will be hard to replace.

Mechanically almost all is possible without Ecus its just it sells better
and the agenda is to make us all just use autonomous vehicles in time and
be surrounded by a smart grid where we cannot decide a thing for ourselves.

I recall old Honda crx s1 getting 45-50mpg with simple efi and the early
1.3 1973/74 civics doing the same with carbs.

Using a big factory heavy flywheel my old 2cv engine could idle around 300-500rpm
and take off well enough not to need stop start technology and gave me 60mpg.

I believe these spark plugs, along with nailhead style chambers, smaller valves,
accompanied cams with more lift and duration and a hefty custom flywheel and some
thermal coatings for more efficiency, teflon coated pistons skirts, su carb and
90mm stroker crank would make an A15 a happy economy grunter engine to challenge
many modern ones in most departments. (Maybe a catalyc converter could also help)