In my opinion, Francis Ford Coppola and George Lucas did more to hype up the Tucker than any person/s alive, including Preston Tucker.
Both Francis Ford Coppola and George Lucas owned a Tucker at the time of the 1988 Movie and each added a bunch of conspiracy theories to the movie, otherwise, the movie would depict a guy trying to build a car and ultimately failed.
When you read the facts about Tucker, you'll find that he wasn't the genius that they made him out to be and, the "BIG 3" in conjunction with the Federal Govt. didn't put him out of business.
By the way, the original engine design was plagued with problems one of which required multiple batteries to turn the starter. The replacement engine was a Franklin Helicopter engine converted to water cooling mated to a Cord transmission and only produced 166 HP.