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"  If you own a hybrid and a smartphone, this app will change the tune of your engine. Acoustically, that is. Developed by 2XL Games, the XLR8 app recreates engine noises that can be played on a smartphone&amp;#039;s speaker or on an auxiliary output like your car&amp;#039;s speakers via a cable or Bluetooth audio. With the smartphone secured in the car, XLR8 uses accelerometers and GPS to sync the audio with throttle, braking and cornering forces. It&amp;#039;s not perfect, but it works decently enough. The app comes free with the classic V-8 rumble of a muscle car. Four other engine sounds are available (NASCAR, Ford GT40, Ferrari and Lamborghini) for purchase. While nothing beats the sound of the real thing, the free version is worth the bandwidth. Find it in the App Store. Get the Android version.  . Related posts:   Prius Nerds Toyota Plug-in Prius Hybrid Toyota Delays Prius v Wagon, Honda Postpones Japanese Production  "^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.roadandtrack.com/new-cars/car-technology/news/a21724/how-to-make-your-prius-sound-like-it-has-a-v-8-33857/>