Acoustic authenticity is also high on the score sheet, through the digitally recorded sounds of a real Continental R975-C4 9-cylinder engine, which roars from the bowls of the tank as it runs. All the speed and nimbleness of the full-sized M4 Sherman with state-of-the-art R/C technology can be recreated. With the addition of "Battle System" infrared tank scoring system, you can reenact one of the most classic military clashes of all time-Tiger vs. Sherman.