Apologies to the admins if this is posted in the wrong category. In fact, if you read the feature, the car actually started as an Olds Cutlass, and he painstakingly swapped out all the components to turn it into a GN. I actually used to work in the group that published Diesel Power. Hope you enjoy:
http://www.trucktrend.com/cool-trucks/0711dp-1982-buick-regal/
http://www.trucktrend.com/cool-trucks/0711dp-1982-buick-regal/