Thunder

Have you ever wanted to drive an exotic car. Now you can know how would that sound like while you are driving.
Just press the gas pedal and hear your engine thunders like the exotic car you wished.

You will need:
1 - A Bluetooth OBD2 adapter (search for it on e-bay or Amazon) to connect it to your car OBD2 socket (probably located under the steering wheel).
2 - An auxiliary cable to play the engine sounds over your car stereo (for high volume and sound quality).
3 - This application.

Three different car sounds can be generated by your own driving:
1 - Italian super car
2 - German sport car
3 - American muscle car

The car sounds are provided by Pole Position Production, which are high quality recordings of real cars
http://pole.se/about-us/

If your are not ready for a trip yet, you can try the sounds with simulation feature, using sliders.

Please Note:
Sound delays depend mainly on the vehicle ECU and the OBD2 adpater
An average of 12-13 readings per second is considered good. Below that you are going to feel some delay from the accelerator pedal action.
To check before you buy Thunder, we recommend installing Thunder demo version and check average number of OBD2 readings per second.
Start OBD2 dashboard and watch the "AVG" icon number on the virtual screen.
http://play.google.com/store/apps/details?id=com.morkim.thunder.demo