How it works
In the car, open the browser, go to drivesfx.com, tap Start engine and allow location. That is all. The sound plays through the car speakers like music, so your music pauses while the engine runs. Your engine choice and volume are remembered.
Nothing is a recording. Each cylinder fires on its real firing order and pushes a pressure pulse into its own header pipe. The pulses meet in the collector, run down the exhaust, through the muffler and out of the tailpipe, and the sound you hear is what comes out of that pipe model. That is why a cross-plane V8 burbles, a flat-plane V8 shrieks and a five-cylinder warbles.
Drive mode follows the car’s GPS speed. It takes out the GPS delay and predicts your speed between fixes, so the revs track the car. Speed sets the rpm through each engine’s gear ratios, and acceleration sets how hard it is working. It learns how quick your car is from your first few hard pulls, so there is nothing to set up. Stopped at a light, hold the dial to rev. Lift off and unburnt fuel lights in the hot pipe, so you get crackles on the overrun and a bang on fast upshifts. Turbo engines spool, whistle and dump their boost when you lift.
The browser cannot see the pedal, only GPS, so a sudden stab of throttle reaches the sound a moment after the car moves. With steering wheel buttons on, next and previous track shift gears in manual or switch engines in auto.
Not affiliated with Tesla. Keep the volume at a level where you can hear the road and emergency vehicles.