Vector WX-3

The Vector 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 Jerry Wiegert as a successor to the W8. Production plans for the WX-3 included a range of three engine configurations ranging from up to 1200 hp (895 kW) from a proprietary 7.0L DOHC V8 engine. 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. The teal-blue coupé and purple roadster are featured as promotional vehicles on the Aquajet website. 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 . The WX-3 prototypes used a three-across seating arrangement that was an option on W8 export models although Vector stated that a production model would have used more conventional bucket seats.

Wiegert had also planned a roadster version of the WX-3, named the WX-3R; both vehicles shared mechanical components from the W8. Like the model it was based on, the WX-3R did not pass the prototype stage. Both versions were shown at the 1993 Geneva Auto Show.

Both cars were auctioned off to fund the development of the Vector WX-8; development of the WX-8 was incomplete by the time of founder Gerald Wiegert's death in early 2021.

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