This is one of the areas where period correct went into the dumpster for practicality, and functionality.
Autometer Sport-Comp 5" electronic speedo (160mph), and tach (8000RPM) were installed in dash where they could be observed by peripheral vision without taking eyes off the road.
Z Series gauges (2 1/8") for
oil, temp, volts, and fuel were used for 2nd tier monitoring, again without taking eyes off the road.