The 1999 Chevrolet Venture is available as a 3-door, 7-seat passenger van. Starting at $21,595, the 1999 Chevrolet Venture Cargo is powered by a 3.4L , 6 -cylinder engine mated to an automatic transmission that returns an EPA estimated 18-mpg in the city and 25-mpg on the highway. The top of the line 1999ChevroletVentureLT Extended Passenger , priced at $ 23,195 , is powered by a 3.4L , 6 - cylinder engine mated to an automatic transmission that returns an EPA estimated 18-mpg in the city and 25-mpg on the highway.