Below is a link to a dealer that specializes in collectable cars that has an A70 Supra in pristine condition, the type of condition that I would like to keep a vehicle in.
As the ad implies, it has the normally aspirated 7M-GE engine.
http://www.rkmotorscharlotte.com/sales/inventory/active#!/1987-Toyota-Supra/135357/326225
This is the generation of Supra that Ed gives Arthur and his parents in the Arthur movie for adults. Only the one that Arthur and his parents own has the 7M-GTE turbocharged engine (the turbocharged version of the 7M engine and one of a few turbocharged variants of Toyota’s M engine). This vehicle, of course; is one of many in the collection of Arthur and his parents.
As always, it matters as to how much money Toyota had spent developing and testing this generation of Supra before it went into production at Toyota’s plant in Tahara, Japan in May, 1986.
Map of where in Japan Toyota’s Tahara Assembly plant is: