what is a 1984 corvet convertable prototype worth ?

What makes you think it's a prototype?

that's just what her husband told her.but how can we tell if it is or is not a prototype?

$5K to $7K. This was the first year for the C-4 Corvette and the 1984s had a lot of issues that were worked out when the 1985s came on the market. Does the car come with the liftoff roof? You said minor work, is it body work or engine? Is it completely stock? High or low mileage? Very low mileage in showroom condition will bring $10K, but anything less brings a lot less for that year.

Are you sure it is a 1984? Corvette did not make Convertibles in 1984 or 1985. The first year the started convertible production was in 1986. If you have a convertible, it is an after market job. The Corvette frame was not structurally sound to support the convertible. You may have targa tops and the rear window may come off to give an appearance of a convertible. If it is chopped to make a convertible, it is worth a lot less money.

The 1984 model year was the second highest production year in Corvette history. The 1983 model year was skipped because the new C4 wasn't ready for production due to quality and build issues. The C4 was officially on sale in the US in March of 1983 (except in California). This made the model year longer than normal which is one of the reasons for the high sales figures. The California version was officially available in April of 1983. All 1984 models were produced at the Bowling Green, Kentucky factory. The brand new 1984 Vette was almost a complete redesign. The design included handling as it's main goal and more interior space and ground clearance as secondary goals. It was also specified that the height of the car should be lower. To attain the height goal the engine was moved rearward and the exhaust was routed through the center tunnel resulting in less room in the footwells. The new design included many firsts, including a new 1 piece removable targa top. The rear hatch glass was the largest piece of glass on any production car in America at the time. New aluminum calipers made by Girlock of Australia stopped the car. A new clamshell hood design made it easier to get to engine and front suspension components. A manual transmission option was offered but was not available until January of 1984. A fully electronic digital dashboard was standard equipment and offered readouts in either English or metric systems. The parking brake moved from the center of the car to the left of the driver. This year did not offer a convertible, and one was not available until the 1986 production year.