CPI Inflation Calculator
says that the CRX today would cost $14,834 and that is a car with a steel body, no battery pack and lots of cast iron parts.
You said the insight only gets 48mpg, that is the insights in town mileage, the in town mileage of the CRX 1.3L is 38 or 36mpg if you have the CA model, all Insights are CA models... so a 36mpg CRX to a 48mpg Honda Insight, when compared on a level playing field, when using the same testing figures and same smog standards... for the year built.