The C5 Corvette was introduced in 1997, but the first year the heads-up display was introduced as an option was 1999.
Its HUD is curious because it displayed several car indicators at once and was a bit more customizable.
Besides the speed, it displayed a scale with engine RPM, as well as an additional scale which would inform the driver about the oil pressure, the coolant temperature, and the fuel level
Unnecessary indicators can be turned off — for example, leaving only the tachometer.
Here's a
quick video review of the Corvette C5 heads-up display.