The Avtech WX-3 is a prototype sports car engineered, developed and manufactured by Vector Motors of Wilmington, California in 1992.

Conceived by Vector Motors founder and chief designer Gerald Wiegert as a successor to the W8.

Originally painted silver, the WX-3 coupé prototype was later re-painted teal by Wiegert to match the teal-blue and purple logo of his Aquajet jet-ski company.

[2] The single finished prototype is powered by the same twin-turbocharged V8 engine as the W8, with an improved flow dual plenum and throttle-body intake tract rather than the Chevrolet Corvette-based system used on the W8 production cars.

At high boost levels the engine was capable of a power output of 1,200 hp (895 kW).