Still, most
any auto is just full of analog computing elements.
The carburetor is full of them.
EFI (Bosch Electronic Fuel Injection)
was available on "Type IVs" (Squarebacks and Fastbacks) in the late
1960s,
That would be the "Type IIIs" (Squarebacks and Fastbacks)
starting in 1968
(U.S. models; slightly different introduction years elsewhere).
The "Type IVs" would also qualify, but not until early 1970s.
then later on MicroBuses (like my 1975 and 1976 ones).
It's
clearly an analog computer with a network of sensors, comparators
and actuators. There's even instructions floating around on how to
do component-level diagnosis.
They were fun.
A friend used to put 1968 Type 3 fool injection on 2180 engines (the
largest that you could expand the 1600 engine without significant
machining) in his early 60s VW buses. He was able to trick the computer
into handling the larger displacement properly by messing with some of the
inputs (particularly the head temperature sender)