YES!

Where rail systems could not be bought, GM bought rail officials instead, giving Cadillacs to those who converted to buses. And where rail systems were publicly owned and could not be bought, like the municipal railway of St. Petersburg, Florida, GM bought their officials instead, according to FBI files, providing complimentary Cadillacs to those who converted to buses.

http://www.whale.to/b/street_car_conspiracy.html

Also to note, the cleveland mayor and his staff were seen driving new Cadillacs right after they announce the move to gas powered buses for the city (cant find the source I read that at, it was a long time ago).

Imagine if Euclid ave still had a streetcar instead of that dumbass health line.