A 2015 Audi R8 (Competition Edition) in v10, 5.2L, 570HP. External = Sounds recorded from outside of the vehicle (passbys, etc) OnBoard = Recording perspectives on and in the vehicle Ramp = is when vehicle is using a single gear (typically 1st gear) and smoothly driven from idle up the RPM redline, then engine brake back to idle. Ramps are often used in video game software.