From a July 1964 "Consumer Bulletin" perspective! My brother came across this issue and passed it along to me.
You'll definitely be interested to read how much horsepower provides "
too much acceleration for the average driver" when they compare the 289 to the "hot" '64 Chevy II... then there's the "hazardous" physical features of the Mustang, a note about the small trunk (although with a bigger opening than ours), and the neverending debate about "what is a true sports car?"