Happy to have found this forum as I am the owner of a 1967 Buick Sportwagon that I am upgrading to a GS400 clone. The car is loaded with options including A/C. AM/FM radio, power windows, power bench seat, third seat, vista top windows, and top luggage rack. I have added the GS400 grill and hood, plus rally wheels and red line tires. I have redone the complete interior to OEM specs and will be installing a rebuilt 1967 400 cu.in. GS engine in two weeks. Car should be complete and roadworthy by 1 July 17 when we will travel to Brookfield, Wisconsin for the 2017 Buick Club of America national meet where the car is entered in the Modified Driven class.