While they were busy producing airplane engines pretty much 24/7, a few American companies (mostly Ford), enhanced the engine and put it in automobiles. These vehicles could blow any other vehicle off the road. Ford's Flathead V-8 was so fast that most of the police around the country, couldn't keep up with the bad guys. You want to know how good that engine was? Clyde Chestnut (Bonnie & Clyde) loved it so much that he wrote Henry Ford a letter thanking him for building such an amazing vehicle.
Their bullet riddled car is shown below. They were killed on May 23, 1934, in Louisianna, which was home to a relative of one of the gang members. Bonnie was 23 years old upon her death and Clyde was 25. Their reign of terror lasted less than two years. In that time, they killed nine police officers and four civilians before they were gunned down. The funny thing is (well, maybe not funny), is that they were on the run the entire time, so their lives were miserable which Bonnie admitted to in her diary.