Why spend thousands on engine mods? For only $49.99, you can choose sounds from the following cars. Start lining up to buy one (I won't)! SHELBY MUSTANG COBRA V8 FERRARI 512 V12 LAMBORGHINI GALLARDO V10 (CURRENTLY SOLD OUT) LEXUS LFA V10J (CURRENTLY SOLD OUT) https://soundracerusa.com/p/products Here is a Tesla S with a Ferrari V12 engine sound! It uses the Sound Racer device, that plays exotic engine sounds through your car stereo's FM transmitter, that matches your engine's rpm in real time. According to its website, "The technology in SoundRacer is based on signals (electrical noise) in the electrical cables from the AC alternator.The signal’s frequency follows the engine speed and the SoundRacer detects the signal and transforms it to a simulated rpm. The increase in simulated rpm is then multiplied with a factor in order to produce a more exciting impression of acceleration without running the car’s engine at high rpm. Based on the changes in rpm, SoundRacer produces different sounds; idling, acceleration at lower rpm, acceleration at higher rpm and deceleration."